Find the Area of the Specified Region $\mathrm { r } = 2 + \cos 3 \theta$

Multiple Choice

Find the area of the specified region.
-Inside the graph of $\mathrm { r } = 2 + \cos 3 \theta$

A) $\frac { 9 \pi } { 2 } + \frac { 17 } { 24 }$
B) $9 \pi$
C) $\frac { 9 \pi } { 2 }$
D) $9 \pi + \frac { 17 } { 12 }$