Which one of the following slogans is not a popular Dr Pepper slogan?

The slogan "Dr Pepper, its time to love it." has never been used. Beginning in 1910, Dr Pepper was identified with the slogan, "King of Beverages." "Old Doc," a typical country doctor, who was a fictional character with a monocle and top hat, was the Dr Pepper trademark character used in the 1920s and 1930s. During that era, research was discovered proving sugar provided energy and that an average person experiences a let down during certain hours of the day. So, a contest was held for the creation of an ad using this new information. The winner of the ad campaign came up with the advertising slogan, "Drink a bite to eat at 10, 2, and 4." Yes, this was the winner; and it was the slogan that Dr Pepper used.

Dr Pepper's slogan in the 1950s was "the friendly Pepper-Upper," which was used by the brand into the 1960s when it became associated with rock and roll music. With changing times, changing slogans have come to broaden the appeal of Dr Pepper. In 2015, another new slogan has been created.