Direction : Study the information and answer the given questions:
Nine people M, N, P, Q, R, S, T, V and W are seating equidistance in a row and all are facing north. Exactly 3 persons sit to the left of R. One person sit between M and R. P sits third to the right of the M. As many people sit to the right of P as to the left of S. Only 3 people sit between Q and S. T sits 4 th to the left of the W. N is one of the persons, who sit to the right of V.
Which of the following pair of persons are sitting at the extreme end?