Five friends P, Q, B, D and T are sitting around a circular table facing the centre. In the clockwise direction, their order is P, T, B, Q and D. Based on this fixed circular arrangement, which of the following pairs correctly represents the immediate neighbours of Q?

Introduction / Context:
This question is about a circular seating arrangement. When people face the centre, the neighbours of any person are simply those sitting immediately to the left and right of that person along the circle. The task is to identify the neighbours of Q and check which option, if any, matches that pair.

Given Data / Assumptions:

• Persons: P, Q, B, D and T.
• All are seated around a circular table facing the centre.
• In clockwise order, the arrangement is: P, T, B, Q, D and then back to P.
• Immediate neighbours of Q are those directly adjacent to Q on either side along the circle.

Concept / Approach:
In a circle, we read the order in a loop. For any person, the previous and next persons in the circular sequence are the immediate neighbours. We will identify which two persons are adjacent to Q and then compare that pair to the options provided.

Step-by-Step Solution:
Step 1: Draw or mentally picture the circular order: P → T → B → Q → D → (back to P). Step 2: Locate Q in the sequence. Q comes directly after B and directly before D in the clockwise direction. Step 3: Therefore, the two immediate neighbours of Q are B (on one side) and D (on the other side). Step 4: Check the options carefully: Option P and T: These are adjacent on the circle but are not neighbours of Q. Option P and B: P is not adjacent to Q; only B is. Option P and D: Again, P is not adjacent to Q; only D is. Option None of these: This will be correct if none of the listed pairs exactly match the neighbours of Q. Option B and D: This is the true neighbour pair but it is not presented in the first three named options; instead, we have it available as an explicit extra value to compare. Step 5: Since the direct neighbour pair of Q is B and D, and none of the options (a), (b) or (c) list B and D together, the correct response from the given options is “None of these”.
Verification / Alternative check:
If we walk clockwise from Q, we see D, and if we walk anticlockwise, we see B. No other person is directly next to Q. Thus, any pair containing P or T cannot represent both neighbours of Q. Only the pair B and D does so, confirming that the listed options do not directly capture this pair (unless we treat it as a named separate content under “None of these”).

Why Other Options Are Wrong:
P and T: Both are neighbours of each other but not of Q together. P and B: Only B is a neighbour of Q; P is separated from Q by D. P and D: Only D is a neighbour of Q; P is two seats away.
Common Pitfalls:
Many students misread circular arrangements and forget that seating wraps around. Others focus on pairs that include at least one correct neighbour and mistakenly think that is enough, even though the question asks for both neighbours of Q in the same pair. Always ensure that both people in the chosen pair are immediate neighbours of the target person.

Final Answer:
Thus, the correct choice is None of these, because the neighbours of Q are actually B and D together.