In the diagram, ABCD is a rectangle. If the area of triangle ABP is 40, then the area of the shaded region is

**Answer Choices**

A. 20

B. 40

C. 60

D. 50

E. 80

In the diagram, ABCD is a rectangle. If the area of triangle ABP is 40, then the area of the shaded region is

**Answer Choices**

A. 20

B. 40

C. 60

D. 50

E. 80