Simplify the Rational Expression $$\frac { x ^ { 3 } - 216 } { x - 6 }$$

Multiple Choice

Simplify the rational expression.
- $$\frac { x ^ { 3 } - 216 } { x - 6 }$$

A) $x ^ { 2 } + 6 x + 36$
B) $\frac { 1 } { x - 6 }$
C) $x ^ { 2 } - 36$
D) $\frac { x ^ { 3 } - 216 } { x - 6 }$