Explanation:

Let’s break it down step by step:

- P is sitting second to the left of S. So if S is here, there’s someone to S’s immediate left, then P.

- T is immediately right of S. So order could be: ... P _ S T ...

- Q is sitting second to the right of R. If R is somewhere, then one person, then Q.

- Q is not on immediate right or left of S.

- We combine the clues. Imagine a round table for easier visualization.

- If we lay it out: P _ S T

- That blank between P and S could be R, Q, or someone else.

- Place R somewhere else, with Q two seats to R's right.

- Mapping all, the only way it matches:

- ...P R S T Q...

- Here, S's immediate right is T, but we care about R's immediate right.

- In this arrangement, S is immediately right of R.

So, the answer is:

Option:2, s