By Fubini's Theorem, the Double Integral $\iint$ R $6 \left( x ^ { 2 } - y \right) d A$

Multiple Choice

By Fubini's Theorem, the double integral $\iint$ R $6 \left( x ^ { 2 } - y \right) d A$ with $R = \{ ( x , y ) : - 1 \leq x \leq 2,0 \leq y \leq 1 \}$ is

A) 2
B) 4
C) 6
D) 9
E) 12