Two nonideal batteries are connected in series. Consider the following statements:
(A) The equivalent emf is larger than either of the two emfs.
(B) The equivalent internal resistance is smaller than either of the two internal resistances.
(a) Each of A and B is correct.
(b) A is correct but B is wrong.
(c) B is correct but A is wrong.
(d) Each of A and B is wrong.