Find the global maximum and minimum points of the function f(x) = - 5x 3 + x +4 on the interval [ - 1,3]. a.) The global minimum is - 21/9 +4 at x = 2. The global maximum is 4 at x = 0. b.) The global minimum is - 394 +4 at x = 2. The global maximum is 4 at X = 0. ".) The global minimum is -2 at x = - 1. The global maximum is - 219 +4 at x = 3. d.) The global minimum is -2 at x = - 1. The global maximum is 4 at X = 0