Solve the Following Quadratic Using Any Method $x^ 2 = 64 .$

Multiple Choice

Solve the following quadratic using any method: $x^ 2 = 64 .$

A) $x = 8$
B) $x = 8 i$
C) $x = 8 , - 8$
D) $x = 8 i , - 8 i$