Factor the Polynomial Completely $2 x ^ { 2 } - 32 y ^ { 2 }$

Multiple Choice

Factor the polynomial completely. Don t forget to look for a common monomial factor first. $2 x ^ { 2 } - 32 y ^ { 2 }$

A) $2 ( x - 4 y ) ( x + 4 y )$
B) $4 ( x - 2 y ) ( x + 2 y )$
C) $( x - 2 y ) ( x + 2 y )$
D) $( x - 4 y ) ( x + 4 y )$
E) not factorable