Help me please

How is finding the volume of a composite figure like finding the surface area of a composite figure?
A. Both can be found by using a formula that includes the length, width, and height of the figure.

B. Both can be found by finding the total volume of the figure.

C. Both can be found by finding the measure of each figure that makes up the composite figure and then adding the measures.

D. Both can be found by subtracting the measure of one figure from the measure of the other figure.