Which of the following functions best represents the graph?
f(x) = (x − 2)(x + 1)(x + 2)
f(x) = (x − 1)(x + 1)(x − 4)
f(x) = (x + 2)(x − 1)(x − 2)
f(x) = (x + 1)(x − 1)(x + 4)
