Evaluate the Double Integral Over the Given Region $$\iint _ { R } 8 x \sin x y d A , \quad R : 0 \leq x \leq \pi , 0 \leq y \leq 1$$

Multiple Choice

Evaluate the double integral over the given region.
- $$\iint _ { R } 8 x \sin x y d A , \quad R : 0 \leq x \leq \pi , 0 \leq y \leq 1$$

A) $8 \pi$
B) $\pi$
C) $8 \pi - 8$
D) $\frac { \pi } { 8 }$