Factor the Difference of Two Squares $49 - 64 x ^ { 2 }$

Multiple Choice

Factor the difference of two squares. $49 - 64 x ^ { 2 }$

A) $( 8 + 7 x ) ^ { 2 }$
B) $( 7 - 8 x ) ^ { 2 }$
C) $( 7 + 8 x ) ^ { 2 }$
D) $( 8 + 7 x ) ( 8 - 7 x )$
E) $( 7 + 8 x ) ( 7 - 8 x )$