Write in Radical Form $$( \mathrm { mn } ) ^ { 1 / 6 }$$

Multiple Choice

Write in radical form. Assume all variables represent positive real numbers.
- $$( \mathrm { mn } ) ^ { 1 / 6 }$$

A) $( m n ) ^ { - 6 }$

B) $\frac { 1 } { \sqrt [ 6 ] { \mathrm { mn } } }$

C) $\sqrt [ 6 ] { \mathrm { mn } }$

D) $( \sqrt { m n } ) ^ { 6 }$