A, B, C are three girls who go to buy six items- P, Q, R, S, T and U. Each one of them buys two different items in such a way that if A buys R, then B buys neither P nor S. If B buys Q, then C buys neither U nor T. If A buys R and T, then B buys:-

A

P and S

B

Q and U

C

P and Q

D

S and U