Which of these is a character in the Charles Dickens novel "Martin Chuzzlewit"?

"The Life and Adventures of Martin Chuzzlewit" (commonly known as "Martin Chuzzlewit") is a novel by Charles Dickens, considered the last of his picaresque novels. It was originally serialised between 1842 and 1844. While he was writing it Dickens told a friend that he thought it was his best work, but it was one of his least popular novels.

The main theme of the novel, according to Dickens's preface, is selfishness, portrayed in a satirical fashion using all the members of the Chuzzlewit family. The novel is also notable for two of Dickens's great villains, Seth Pecksniff and Jonas Chuzzlewit. Dickens introduced the first private detective character in this novel.

Seth Pecksniff, is a widower with two daughters, who is a self-styled teacher of architecture. His daughters are called Charity and Mercy. They are also known as Cherry and Merry, or as the two Miss Pecksniffs. Charity is portrayed throughout the book as having none of that virtue after which she is named, while Mercy, the younger sister, is at first laughing and girlish, though later events drastically change her outlook on life.