Factor the Perfect Square Trinomial Completely $p ^ { 2 } - 8 p q + 64 q ^ { 2 }$

Multiple Choice

Factor the perfect square trinomial completely.
- $p ^ { 2 } - 8 p q + 64 q ^ { 2 }$

A) prime
B) $( p + 8 q ) ( p - 8 q )$
C) $( p - 8 q ) ^ { 2 }$
D) $( p + 8 q ) ^ { 2 }$