Simplify the Expression $\sqrt [ 4 ] { \frac { 7 } { 5 } }$

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $\sqrt [ 4 ] { \frac { 7 } { 5 } }$

A) $\frac { \sqrt [ 4 ] { 175 } } { 5 }$
B) $\frac { \sqrt [ 4 ] { 875 } } { 5 }$
C) $\frac { \sqrt [ 4 ] { 125 } } { 5 }$
D) $5 \sqrt [ 4 ] { 875 }$