Use Cylindrical Shells to Find the Volume of the Solid $r$

Multiple Choice

Use cylindrical shells to find the volume of the solid. A sphere of radius $r$ .

A) $V = \frac { 1 } { 3 } \pi r ^ { 3 }$
B) $V = \frac { 4 } { 3 } \pi r ^ { 3 }$
C) $V = \frac { 7 } { 3 } \pi r ^ { 3 }$
D) $V = \frac { 2 } { 3 } \pi r ^ { 3 }$
E) $V = \frac { 5 } { 3 } \pi r ^ { 3 }$