Answer:
A. Proportion
Explanation:
When referring to a piece of art, especially 3d art like sculptures, "proportions" is used to describe things like height, width, depth and general measurements
The term that best completes the statement above would be "aria." It is a part of the opera wherein it expresses the music of the ensemble in such a way that it dictates the tone of the opera. It is usually accompanied by an instrument and it is not necessarily song by the opera singer.
In my opinion, a story arc helps organize a play because it represents and explains in details about the whole play. In addition, story arcs include the settings, characters, and the plot which will most likely contribute to when organizing a play.
