The quadratic function f(x) has roots of −4 and 3 and point (2, −6) lies on f(x). What is the equation of f(x)?

A. f(x) = (x + 3)(x − 4)
B f(x) = (x − 3)(x + 4)
C f(x) = 3(x + 3)(x − 4)
D. f(x) = 3(x − 3)(x + 4)