Simplify the Numerical Expression $$- 10 ^ { - 3 }$$

Multiple Choice

Simplify the numerical expression. $$- 10 ^ { - 3 }$$

A) $\frac { 1 } { 100 }$
B) $- 1,000$
C) $- \frac { 3 } { 1,000 }$
D) $\frac { 1 } { 1,000 }$
E) $- \frac { 1 } { 1,000 }$