Find the Solution Set for the Nonlinear Inequality $4 x ^ { 2 } \leq 256$

Multiple Choice

Find the solution set for the nonlinear inequality $4 x ^ { 2 } \leq 256$ .

A) $[ - 8,8 ]$
B) $[ - 16,16 ]$
C) $[ - 4,4 ]$
D) $( - \infty , - 4 ] \cup [ 4 , \infty )$
E) $\left[ - \frac { 1 } { 8 } , \frac { 1 } { 8 } \right]$