By Fubini's Theorem, the Double Integral $\iint$ R $4 x e ^ { y } d A$

Multiple Choice

By Fubini's Theorem, the double integral $\iint$ R $4 x e ^ { y } d A$ with $R = \{ ( x , y ) : 0 \leq x \leq 1,0 \leq y \leq 1 \}$ is

A) $e - 1$
B) $e + 1$
C) $2 ( e - 1 )$
D) $2 ( e + 1 )$
E) $e + 2$