Find the Volume of the Solid Generated by Revolving the Shaded

Multiple Choice

Find the volume of the solid generated by revolving the shaded region about the given axis.
-About the $y$ -axis


$x = 2 \tan \left( \frac { y } { 5 } \right)$

A) $5 \pi + 5 \pi ^ { 2 }$
B) $20 \pi - 5 \pi ^ { 2 }$
C) $20 - 5 \pi$
D) $10 \pi - \frac { 5 } { 2 } \pi ^ { 2 }$