Comprehension Passage
Direction: There are six steps on. a staircase leading from the ground floor to the first floor. Denote the first step by 1, second by 2, and so on. There are four people P, Q, R and S. No two people can be on the same step.
I. P is two steps below R.
II. Q is on the next step to S.
III. R is two steps below S.
If T was on the third step, which of the following pairs is incorrect?
1
Q-fifth step
2
R-fourth step
3
Q-fourth step
4
S-sixth step