Find the Product $( 7 - x )$ $( 7 + x )$

Multiple Choice

Find the product. $( 7 - x )$   $( 7 + x )$

A) $49 - 14 x + x ^ { 2 }$
B) $49 + 14 x + x ^ { 2 }$
C) $49 - x ^ { 2 }$
D) $49 - 14 x - x ^ { 2 }$
E) $49 + x ^ { 2 }$