Each base of a triangular prism is a right triangle with side lengths 3 inches, 4 inches, and 5 inches. The height of the prism is 7 inches. What is the surface area of the prism?
A.420 in2
B.840 in2
C.96 in2
D.84 in2
A.420 in2
B.840 in2
C.96 in2
D.84 in2