Multiply and Then, If Possible, Simplify by Factoring $\sqrt{3} \sqrt{6}$ A) $\sqrt{18}$

Multiple Choice

Multiply and then, if possible, simplify by factoring.
- $\sqrt{3} \sqrt{6}$

A) $\sqrt{18}$
B) $9 \sqrt{2}$
C) $\sqrt{2}$
D) $3 \sqrt{2}$