Use Synthetic Division to Divide $\left( x ^ { 2 } + 9 x + 12 \right) \div ( x + 6 )$

Multiple Choice

Use synthetic division to divide.
- $\left( x ^ { 2 } + 9 x + 12 \right) \div ( x + 6 )$

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