Find the Exact Solution to the Equation $125 \left( \frac { 1 } { 5 } \right) ^ { x / 3 } = 5$

Multiple Choice

Find the exact solution to the equation.
- $125 \left( \frac { 1 } { 5 } \right) ^ { x / 3 } = 5$

A) $x = \frac { 2 } { 3 }$
B) $x = 7$
C) $x = 6$
D) $x = 2$