Which Baroque composer did not write an opera?

A typical string quartet usually consists of

A) two violins, one viola, and one cello. B) two violins, one cello, and one piano. C) one violin, one viola, one cello, and one string bass. D) one violin, one viola, one cello, and one harp.

Each key of the keyboard represents one tone, and each of the seven different white keys bears one of seven letter names.

Answer the following statement true (T) or false (F)