Find the Volume Under the Surface Z = F(x,y) and Above

Multiple Choice

Find the volume under the surface z = f(x,y) and above the rectangle with the given boundaries.
-z = 6 y; R = {(x, y) : 0 $\le$ x $\le$ 4, 0 $\le$ y $\le$ 3}

A) 576
B) 1256
C) 2256
D) 676