Simplify the Rational Expression $\frac { 24 x ^ { 3 } } { 6 x }$

Multiple Choice

Simplify the rational expression. If the rational expression cannot be simplified, so state.
- $\frac { 24 x ^ { 3 } } { 6 x }$

A) 18
B) $4 x ^ { 2 }$
C) $18 x ^ { 2 }$
D) $4 \mathrm { x }$