Which musical instrument is generally thought to be closest to the human voice?

Very subjective. Many sources claim anything from the Vocoder, to the oboe, cello,,am aerophone, etc. Your worst question yet!

I have some issues with answer choice the cello not the violin is the correct answer I believe

As an experienced Music Educator, in this instance, it is the trumpet. The range most resembles the female voice in range, and it uses air to produce the sound. A very strange and misleading question!

Albeck1994, musicians and listeners alike have long remarked on the Cello's wide range (almost the same as a human voice), its ability to convey warmth and emotion, and the way it can “sing” with phrasing similar to speech or song. Other contenders sometimes mentioned are: Violin – for its singing upper register. Clarinet – for its smoothness and expressive tone. Trombone – because, with its slide, it can glide between notes like a singer. But the cello is the one most widely regarded as the closest in timbre and expression as the human voice among EUROPEAN instruments. The Quena, Andean Flute, is on level with the Cello as being close to the human voice. Make a report as quizclub admin take more notice of reports than comments.

David Roy, my research indicates that the cello is the closest EUROPEAN instruments to the human voice. Other instruments are the Violin, clarinet, trumpet and trombone. Make a report as quizclub admin take more notice of reports than comments.

Rafi Manory, my research indicates that the cello is the closest EUROPEAN instrument to the human voice. Make a report as quizclub admin take more notice of reports than comments.

Heather Braden, my research indicates that the cello is the closest European instrument to the human voice. Make a report as quizclub admin take more notice of reports than comments.

Georgie, quite true so make a report as quizclub admin take more notice of reports than comments.

Chris Hall, trumpet, trombone, clarinet, violin are contenders but the cello is regarded as the closest to the human voice.

Jaimi McEntire, make a report as quizclub admin take more notice of reports than comments and the cello is indeed regarded as the closest to the human voice.

reydlt, musicians and listeners alike have long remarked on the Cello's wide range (almost the same as a human voice), its ability to convey warmth and emotion, and the way it can “sing” with phrasing similar to speech or song. Other contenders sometimes mentioned are: Violin – for its singing upper register. Clarinet – for its smoothness and expressive tone. Trombone – because, with its slide, it can glide between notes like a singer. But the cello is the one most widely regarded as the closest in timbre and expression as the human voice among European instruments. The Quena, Andean Flute, is on level with the Cello as being close to the human voice. Make a report as quizclub admin take more notice of reports than comments.

Marianne, the cello is the one most widely regarded European instrument as the closest in timbre and expression to the human voice. Other contenders are the Violin for its singing upper register, the Clarinet for its smoothness and expressive tone and the Trombone because, with its slide, it can glide between notes.The Andean flute, Quena, is also regarded as close to the human voice outside the range of European instruments.

John Roy Giese, the Violin is a contender for its singing upper register, but the cello is the one most widely regarded as the closest in timbre and expression as the human voice. Make a report as quizclub admin take more notice of reports than comments.

Nancy Chisholm, quite true although other contenders are: Violin – for its singing upper register. Clarinet – for its smoothness and expressive tone. Trombone – because, with its slide, it can glide between notes like a singer. But the cello is the one most widely regarded as the closest in timbre and expression as the human voice. Right a report as quiz club admin take more notice of reports than comments.

Marian Spitzig, musicians and listeners alike have long remarked on the Cello's wide range (almost the same as a human voice), its ability to convey warmth and emotion, and the way it can “sing” with phrasing similar to speech or song. Other contenders sometimes mentioned are: Violin – for its singing upper register. Clarinet – for its smoothness and expressive tone. Trombone – because, with its slide, it can glide between notes like a singer. But the cello is the one most widely regarded as the closest in timbre and expression as the human voice.

Peter Frampton could make his guitar speak words.

The pitch of the violin is too high. The cello is usually regarded as the closest tone to the human voice. This is so apparent to anyone that the violin should not have been in the list of choices!!