Though Monteverdi composed some religious music, he is known
for being an innovator of
A. the music form of "Opera."
B. the Bluegrass music form.
C. the Rhythm and Blues music form.

A

Explanation:

the answer of "what has three legs but never walks" is a yard stick. this answer can be found at

pitch- the definition of pitch is as follows:

"the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone."