following information below and answer the question that follow
i. P,Q,R,S,T,U and V are seven friends are sitting in circle facing the center of the circle
ii. V is second to the left of S and is the neighbour of T and U
iii. S is not a neighbour of R or T
iv. P is neighbour of Q and R

Which of the following has the pair with the second person sitting to the immediate right of the first person?
1. QU
2. VU
3. TR
4. PT