If x - 3 Is a factor P(x) = x ^ 3 - 7x ^ 2 + 15x - 9, which of the following represents the complete factorization for P(x) ?

A. (x-3)(x+4)(x+1)
B. (x-3)(x+3)(x+1)
C. (x-3(x-3)(x-1)
D. (x-3)(x+3)(x-1)