Factor the Trinomial Completely $- x ^ { 2 } - 3 x + 40$

Multiple Choice

Factor the trinomial completely. If the polynomial cannot be factored, write "prime."
- $- x ^ { 2 } - 3 x + 40$

A) -1(x - 8) (x + 1)
B) -1(x - 8) (x + 5)
C) -1(x + 8) (x - 5)
D) -1(x - 8) (x - 5)