In order for harmony to occur in music at least two must be sounded at the same time A) pitches
B) sharps
C) instruments

Hallo! the answer is dynamic symmetrygood-luck! c:

Iam about 95% sure this wasn't asked on a school assignment.never heard of it.i dunno, i've been missin' you?

The answer to this is (happier) : )

The options for this question is 
a.) a private building used for religious purposes
b.) a stadium used for athletic events, chariot racing, and acrobatics
c.) a central building surrounded by religious and governmental buildings
d.) an open space in a town used as a central gathering place or event