WHO EVER HELPS ME FIRST GETS BRAINLESTHow can decomposing a parallelogram and composing it as
another shape help in understanding the formula for the area of
a parallelogram?

You can compose, or create, a parallelogram (a four-sided shape with two sets of opposite, parallel sides) using two shapes, such as triangles or squares. You can decompose, or take apart, a parallelogram by dividing it from opposite corners, either vertically or horizontally.

Ithink the answer is c