Factor by Any Method $$( p + q ) ^ { 2 } - 2 ( p + q ) + 1$$

Multiple Choice

Factor by any method.
- $$( p + q ) ^ { 2 } - 2 ( p + q ) + 1$$

A) prime
B) $( p + q - 1 ) ( p + q )$
C) $( p + q - 1 ) ^ { 2 }$
D) $( p + q - 1 ) ( p + q + 1 )$