Four friends, Art, Roger, Paul and Trisha, bake cookies, and all cookies have the same thickness. The shapes of the cookies differ, as shown.
Art’s cookies are trapezoids: 
Roger’s cookies are rectangles: 
Paul’s cookies are parallelograms: 
Trisha’s cookies are triangles: 
Each friend uses the same amount of dough, and Art makes exactly 12 cookies. How many cookies will be in one batch of Trisha’s cookies?
Answer Choices
A. 10
B. 12
C. 16
D. 18
E. 24