A right triangle is formed by line segments KM, MP, and KP.

Based on the diagram, which describes the
best method to determine the area of the
shaded region?

A: The area of the shaded region is equal to
the sum of the areas of the two unshaded
regions.

B: The area of the shaded region is equal
to the difference in the areas of the
unshaded regions.

C: The area of the shaded region is equal
to the sum of the side lengths of the
unshaded regions.

D: The area of the shaded region is equal to
the difference in the side lengths of the
unshaded regions