Convert the Expression to Radical Notation $x ^ { 1 / 5 }$

Multiple Choice

Convert the expression to radical notation. $x ^ { 1 / 5 }$

A) $\frac { \sqrt { x } } { 5 }$
B) $5 \sqrt { x }$
C) $\frac { 1 } { \sqrt { x ^ { 5 } } }$
D) $\sqrt [ 5 ] { x }$