Solve the Following Polynomial Equation by Factoring and Using the Zero

Multiple Choice

Solve the following polynomial equation by factoring and using the zero factor property. $x ^ { 4 } - 81 x ^ { 2 } = 0$

A) $0 , \pm 9$
B) $\pm 9 , \pm 81$
C) $0,81$
D) $0,9,81$
E) $\pm 9$