Evaluate the Expression $$\left( - \frac { 64 } { 125 } \right) ^ { - 4 / 3 }$$

Multiple Choice

Evaluate the expression.
- $$\left( - \frac { 64 } { 125 } \right) ^ { - 4 / 3 }$$

A) not a real number
B) $\frac { 625 } { 256 }$
C) $\frac { 256 } { 625 }$
D) $- \frac { 256 } { 625 }$