Evaluate the Double Integral Over the Given Region $\le$ X $\le$ $\pi$

Multiple Choice

Evaluate the double integral over the given region.
- R = {(x, y) : 0 $\le$ x $\le$$\pi$ , 0 $\le$ y $\le$ 1}

A) 4 $\pi$
B) $\pi$
C)
D) 4 $\pi$ - 4