Six girls named P, Q, R, S, T and U are sitting in a straight line. R is to the right of S. S is third from the extreme left end. Q is to the left of R. S is third from the right end. T is at the immediate left of R. U is at the immediate left of S. What is P's position in the line?
- A.Second from the extreme left end
- B.Third from the extreme left end
- C.At the extreme left end
- D.Third from the extreme right end