Study the following information carefully and answer the given questions.
P, Q, R, S, T, V, X and Y are seated in a straight line facing north. P sits fourth to the left of V. V sits either sixth from the left end of the line or fourth from the right end of the line. S sits second to the right of R. R is not an immediate neighbour of V. T and Q are immediate neighbours of each other but neither T nor Q sits at extreme ends of the line. Only one person sits between T and X. X does not sit at the extreme end of the line.
Which of the following represents persons seated at the two extreme ends of the line?