Factor Completely $49 - x ^ { 2 }$ A) $( 49 + x ) ( 1 - x )$

Multiple Choice

Factor completely. Check by multiplying the factors. $49 - x ^ { 2 }$

A) $( 49 + x ) ( 1 - x )$
B) $x ( 49 - x )$
C) $( 7 - x ) ( 7 + x )$
D) $( 7 - x ) ( 7 - x )$
E) $( 49 - x ) ( 1 + x )$