Find All Solutions Of $\left( x ^ { 2 } + 9 \right) ^ { 3 / 2 } = 125$

Multiple Choice

Find all solutions of $\left( x ^ { 2 } + 9 \right) ^ { 3 / 2 } = 125$ .

A) $x = \pm 4$
B) $x = \sqrt [ 3 ] { 9 }$
C) $x = - 4$
D) $x = 5$
E) $x = \pm \sqrt [ 3 ] { 9 }$