Find the Area Enclosed in One Petal Of $r = \sin ( 5 \theta )$

Multiple Choice

Find the area enclosed in one petal of $r = \sin ( 5 \theta )$

A) $\frac { \pi } { 15 }$
B) $\frac { \pi } { 20 }$
C) $\frac { \pi } { 25 }$
D) $\frac { \pi } { 30 }$