Factor the Polynomial Completely $2 a ^ { 2 } + 2 a b - 9 a - 9 b$

Multiple Choice

Factor the polynomial completely. If the polynomial cannot be factored, write "prime."
- $2 a ^ { 2 } + 2 a b - 9 a - 9 b$

A) (2a - 9) (a - b)
B) (2a + 9) (a - b)
C) (2a - 9) (a + b)
D) (2a + 9) (a + b)