Seven persons M, N, O, Q, R, S and T sit in a straight row facing north direction. Who sits 2nd from the left end? Statement I: O sits 2nd to the left of R. N sits 2nd to the left of M, who sits to the immediate left of Q. Only M and Q sit to the right of R. Statement II: Four persons sit between S and M, who sits 2nd from the right end. T sits 3rd to the left of R, who sits adjacent to
M. O sits to the immediate left of N. Statement III: S sits to the left of N. M sits to the right of O. Q sits at one of the extreme ends.