Find the Area of the Region Specified in Polar Coordinates $r = 10 \sin 2 \theta$

Multiple Choice

Find the area of the region specified in polar coordinates.
-one petal of the rose curve $r = 10 \sin 2 \theta$

A) $25 \pi$
B) $50 \pi$
C) $\frac { 50 } { 3 } \pi$
D) $\frac { 25 } { 2 } \pi$