Factor the Following Trinomial Completely $x ^ { 2 } + 16 x + 63$

Multiple Choice

Factor the following trinomial completely. $x ^ { 2 } + 16 x + 63$

A) ( x $-$ 9) ( x + 7)
B) x ( x + 16) + 63
C) ( x + 9) ( x + 7)
D) ( x + 9) ( x $-$ 7)
E) ( x $-$ 9) ( x $-$ 7)