Find the Volume of the Solid Generated by Revolving the Region

Multiple Choice

Find the volume of the solid generated by revolving the region about the y-axis.
-The region enclosed by $x = 2 \tan \frac { y } { 7 } , x = 0 , y = - \frac { 7 \pi } { 4 }$

A) $28 \pi - 7 \pi ^ { 2 }$
B) $28 - 7 \pi$
C) $14 \pi - \frac { 7 } { 2 } \pi ^ { 2 }$
D) $7 \pi + 7 \pi ^ { 2 }$