Which statement about the function is true? The graph of the function f(x) = -(x + 3)(x - 1) is shown below.
O The function is positive for all real values of x where X< -1.
O The function is negative for all real values of x where X < -3 and where x >1
O The function is positive for all real values of x where x > 0
O The function is negative for all real values of x where X <-3 or X > -1