Q: Five students P, Q, W, S and V have different heights. Who is the tallest person among them?I. P is taller than Q, but he is not the tallest. Q is shorter than W.S is shorter than V.II. Only three persons are shorter than P. Q is shorter than P and V. W is taller than S.

• A. Only II
• B. Neither I nor II
• C. Only I
• D. Either I or II
• E. Both I and II