Solve the Equation $$m ^ { - 4 } = \frac { 1 } { 256 }$$

Multiple Choice

Solve the equation.
- $$m ^ { - 4 } = \frac { 1 } { 256 }$$

A) $\left\{ \frac { 1 } { 4 } \right\}$
B) $\{ - 4,4 \}$
C) $\{ 256 \}$
D) $\{ 4 \}$