The violin, viola, cello, and bass are all in the string family. The violin and viola are held under the chin, and while the viola is larger than the violin, the violin is higher-pitched with its famous "E" string. The cello and bass play lower notes, with the cello sounding rich and melodic with the subtlety of melancholy. The bass is a deep instrument with strings that are plucked as often as they are played with a bow. All four are beautifully sounding instruments.

Which is the main idea of this paragraph?

A.) The viola is larger than the violin, but the violin is higher-pitched with its famous "E" string.
B.) The violin, viola, cello, and bass are all in the string family.
C.) The cello and bass have the capacity to play lower notes.
D.) The cello is a rich and melodic sounding instrument.