The Region Bounded by the Given Curves Is Rotated About $x^{2}+(y-1)^{2}=1^{2}$

Multiple Choice

The region bounded by the given curves is rotated about the specified axis. Find the volume of the resulting solid by any method. $x^{2}+(y-1) ^{2}=1^{2}$ about the y-axis

A) $V=\frac{4}{3} \pi$
B) $V=\frac{8}{3} \pi$
C) $V=\frac{28}{3} \pi$
D) $V=\frac{1}{3} \pi$
E) $V=\frac{20}{3} \pi$