Which of the following represents the zeros of f(x) = x3 − 5x2 − 3x + 15?

A) 5, square root of 3, −square root of 3
B) −5, −square root of 3, −square root of 3
C) 5, −square root of 3, −square root of 3
D) −5, square root of 3, square root of 3