Simplify Assume All Variables Represent Positive Real Numbers $\frac { 4 } { \sqrt { 5 } }$

Multiple Choice

Simplify. Assume all variables represent positive real numbers.
- $\frac { 4 } { \sqrt { 5 } }$

A) 29
B) $4 \sqrt { 5 }$
C) $\frac { 4 \sqrt { 5 } } { 5 }$
D) $\frac { 16 \sqrt { 5 } } { 5 }$