Use a Triple Integral to Find the Volume of the Solid

Multiple Choice

Use a triple integral to find the volume of the solid shown below.
$z = 36 - x ^ { 2 } - y ^ { 2 } , z \geq 0$

A) $18.00 \pi$
B) $648.00$
C) $18.00$
D) $324.00 \pi$
E) $648.00 \pi$