Simplify the Expression $27 ^ { \frac { 1 } { 3 } }$

Multiple Choice

Simplify the expression. $27 ^ { \frac { 1 } { 3 } }$

A) $\frac { 1 } { 3 }$
B) $9$
C) $\frac { 1 } { 32 }$
D) $2$
E) $3$