Find the Area of the Region Enclosed by One Loop $r = 7 \cos 8 \theta$

Multiple Choice

Find the area of the region enclosed by one loop of the curve.
$r = 7 \cos 8 \theta$

A) $\frac { 49 \pi } { 11 }$
B) $\frac { 49 \pi } { 32 }$
C) $\pi$
D) $49 \pi$
E) $\frac { \pi } { 8 }$