Factor as Completely as Possible $25 - ( x + 5 y ) ^ { 2 }$

Multiple Choice

Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.
- $25 - ( x + 5 y ) ^ { 2 }$

A) $( 5 + x + y ) ( 5 - x - y )$
B) $( 5 + 5 x y ) ( 5 - 5 x y )$
C) $( 5 + x + 5 y ) ( 5 - x - 5 y )$
D) $( 5 + x - 5 y ) ( 5 - x - 5 y )$