Using Cylindrical Coordinates, the Volume of the Solid Bounded By x

Multiple Choice

Using cylindrical coordinates, the volume of the solid bounded by $x ^ { 2 } + y ^ { 2 } + z = 1$ and z = 0 is

A) $2 \pi$
B) $3 \pi$
C) $6 \pi$
D) $\frac { \pi } { 2 }$
E) $\pi$