Add or Subtract $\sqrt{18 x+36}+\sqrt{2 x+4}$ A) $4 \sqrt{2} \sqrt{x+2}$ B) $3 \sqrt{2} \sqrt{x-2}$

Multiple Choice

Add or subtract. Simplify by collecting like radical terms, if possible.
- $\sqrt{18 x+36}+\sqrt{2 x+4}$

A) $4 \sqrt{2} \sqrt{x+2}$
B) $3 \sqrt{2} \sqrt{x-2}$
C) $3 \sqrt{2} \sqrt{x+2}$
D) $4 \sqrt{2} \sqrt{x-2}$