Find the Volume of the Solid of Revolution Formed by Rotating

Multiple Choice

Find the volume of the solid of revolution formed by rotating the region R about the x-axis. R is the region under the curve $y = \sqrt { 16 - x ^ { 2 } }$ from x = -4 to x = 4.

A) $16 \pi$
B) $\frac { 64 } { 3 } \pi$
C) $\frac { 2.56 } { 3 } \pi$
D) $64 \pi$