Simplify the following expression.
$4 \sqrt{72}$
A$6 \sqrt{24}$
B$144 \sqrt{6}$
C$24 \sqrt{6}$
D$24 \sqrt{2}$
$4 \sqrt{72}$
A$6 \sqrt{24}$
B$144 \sqrt{6}$
C$24 \sqrt{6}$
D$24 \sqrt{2}$