Directions: Read the given information carefully and answer the questions that follow.

Seven friends M, N, O, P, Q, R and S sit in a straight row. Out of seven, some face north and some face south, not necessarily in the same order. The number of people facing South is more than the number of people facing North.

a) N faces the direction opposite to that of R and Q, who faces the direction same as that of its neighbour, S.

b) N is the neighbour of neither S nor P. Q is not the neighbour of M.

c) P and R sit at the extreme ends of the row.

d) There are exactly three people between N and M.

e) The people sitting at the extreme ends of the row face different directions.

f) S sits third to the left of R.

g) People sitting at the either sides of O, face the same direction as that of O.