Which ONE of the following combinations of quantum numbers is NOT allowed? a. n=5,1 = 3, ml = 3 b. n = 4,1 = 2, ml = 2 C. n = 2,1 = 1, ml = -1 d. n = 3,1 = 0, ml = 0 e. n=1,1 = 1, ml = 0