Solve the Equation $$8 ^ { x - 3 } = 64 ^ { 4 x }$$

Multiple Choice

Solve the equation.
- $$8 ^ { x - 3 } = 64 ^ { 4 x }$$

A) $\left\{ - \frac { 3 } { 7 } \right\}$
B) $\left\{ - \frac { 1 } { 7 } \right\}$
C) $\{ - 1 \}$
D) $\left\{ - \frac { 9 } { 7 } \right\}$