Five persons P, Q, R, S and T are sitting in a row. Q. is in between P and T. To find who among them is in the middle, which of the following information given in the following statements is/are sufficient?
Statements:
I. P is left of Q and right of S.
II. R is at the right end.
Select the correct answer using the code given below
A. I only
B. II only
C. Either I or II
D. Both I and II