An is an orchestral composition performed before the curtain rises on a dramatic work. a. overtureb. ariac. operad. opening

A) Overture

Explanation:

The actors of the play have to take their places when an overture begins and then wait for the rise of the curtain. After the curtain rising the play starts.  

When hearing an overture, the audience can get an idea of music that would be in the play.

for those of you who searched "which list includes four types of animal-like protists? " and keep getting these results, the answer is c: flagellates, sarcodines, ciliates, parasites

i think cheerleading is definitely a form of art. or at least it should be! not everyone has what is takes/and or the determination to become a cheerleader. it takes practice and hard work, along with being able to master a move correctly, like dancing. dancing is a form of art, and i think cheerleading is too. not everyone can dance, just like not everyone can be a cheerleader.