Simplify the Complex Fraction $\frac { \frac { x } { 2 } } { \frac { 3 } { x + 4 } }$

Multiple Choice

Simplify the complex fraction.
- $\frac { \frac { x } { 2 } } { \frac { 3 } { x + 4 } }$

A) $\frac { x ( x + 4 ) } { 6 }$
B) $\frac { x + 4 } { 6 x }$
C) $6 x ( x + 4 )$
D) $\frac { 3 x } { 2 ( x + 4 ) }$