Factor the Trinomial Completely $a ^ { 2 } - 4 a b - 12 b ^ { 2 }$

Multiple Choice

Factor the trinomial completely. If the polynomial cannot be factored, write "prime."
- $a ^ { 2 } - 4 a b - 12 b ^ { 2 }$

A) (a + 2b) (a - 6b)
B) (a - 2b) (a + b)
C) (a - 2b) (a + 6b)
D) prime