Explanation:

Let's solve step by step:

- U sits at 5 O’Clock (seat 5).

- R is to the immediate left of U, so R is at 4 O’Clock (seat 4).

- Q is to the right of R (which would be seat 5, where U is, but let's check further).

- There is a 3-hour difference between R (seat 4) and T, so T could be at seat 1 (4-3) or seat 7 (4+3).

- T is diagonally opposite Q (so if T is at seat 1, Q is at seat 7, or vice versa).

- There is a 6-hour gap between P and R (so P is at seat 10, since 4+6=10 or 4-6=10, using mod 12).

- V is immediate right of P (so V at 11).

- S is on a seat 4 hours less than P (if P is at 10, S at 6).

- Now fill seats:

Seat 4: R

Seat 5: U

Seat 10: P

Seat 11: V

Seat 6: S

- Seats available: 1, 7.

Let’s try T at seat 1 and Q at 7.

R is at 4, Q (seat 7) is to the right of R (in circular manner: 4?5?6?7).

T at seat 1 is 3 hours from R (seat 4).

T (1) is diagonally opposite Q (7).

- So who is immediate right of R (seat 4)? Looking at the clock: After seat 4 is seat 5.

- At seat 5 is U.

Options:

1. T

2. P

3. Q

4. R

5. U

Option 5: U is correct.

Summary:

- Immediate right of R (seat 4) is seat 5, where U sits.

- All statements are satisfied with this arrangement!