Write a polynomial function in standard form with the given zeros. x = 3, -1, -7

Choose the correct answer below.

A. f(x) = x3 - 5x² – 17x + 21
B. f(x) = x3 + 5x2 – 17x- 21
C. f(x) = (x - 3)(x + 1)(x + 7)
D. f(x) = (x+3)(x - 1)(x - 7) E. f(x)=- 21 + x3 – 17x + 5x2
F. f(x) = 21 + x3 – 17x - 5x2
(No links please) they don't work for me)