Use Radical Notation to Rewrite the Expression $( x y ) ^ { 1 / 5 }$

Multiple Choice

Use radical notation to rewrite the expression. Simplify, if possible.
- $( x y ) ^ { 1 / 5 }$

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