Solve the Equation Involving a Square $x ^ { 2 } + 16 = 0$

Multiple Choice

Solve the equation involving a square: $x ^ { 2 } + 16 = 0$

A) $x = - 16 i$
B) $x = \pm 2 i$
C) $x = - 4 i$
D) $x = \pm 4 i$