Simplify the Expression $$\left( \frac { 4 } { x } \right) ^ { 2 }$$

Multiple Choice

Simplify the expression. Assume all variables represent nonzero real numbers.
- $$\left( \frac { 4 } { x } \right) ^ { 2 }$$

A) $16 x ^ { 2 }$

B) $\frac { 4 } { x ^ { 2 } }$

C) $\frac { 16 } { x ^ { 2 } }$

D) $\frac { 16 } { x }$