Rationalize the Denominator and Simplify $\sqrt { \frac { 25 } { x } }$

Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
- $\sqrt { \frac { 25 } { x } }$

A) $\frac { 5 } { x }$
B) $\frac { 5 \sqrt { x } } { x }$
C) $\frac { 5 \sqrt { x } } { x ^ { 2 } }$
D) $\frac { 25 \sqrt { 5 x } } { x }$