Let V Be the Volume of the Solid That Lies $y = \frac { x ^ { 2 } } { 8 }$

Let V be the volume of the solid that lies between planes perpendicular to the x-axis from x = 0 to x = 4. The cross-sections of this solid perpendicular to the x-axis run from $y = \frac { x ^ { 2 } } { 8 }$ to $y = \sqrt { x }$ and they are semicircles with diameters in the xy-plane. Then V is

A) $\frac { \pi } { 3 }$
B) $\frac { 47 \pi } { 3 }$
C) $\frac { 25 \pi } { 3 }$
D) $\frac { 7 \pi } { 3 }$
E) $\frac { 9 \pi } { 35 }$