The receptive and control centers for one side of the body are in the opposite hemisphere of the brain, this is referred to as in addition, different functions or actions within the brain tend to rely more heavily on one hemisphere or the other or tend to be performed differently in the two hemispheres. this is referred to as

The receptive and control centers for one side of the body are in the opposite hemisphere of the brain, referred to as _contralaterality_, literally meaning "opposite"(contra) "side"(lateral).
Also, different functions or actions within the brain tend to rely more heavily on one hemisphere or the other or tend to be performed differently in the two hemispheres. this is referred to as _cerebral lateralization_, meaning "one-sidedness," or dominance, such as left-dominant vs. right-dominant.

D. A cube.

Explanation:

The diagram shown in the given question ids more like a cube. A cube is a three dimensional structure having six faces(square shaped) and 12  edges and eight vertices. Volume of cube can be determined by taking cube of it's one edge. Surface area of cube is six times to the square of its edge.