Six people A, B, C, D, E, and F are seated in a single row. E and F occupy the two central seats; A and B occupy the two extreme seats. C sits somewhere to the left of A. Who sits immediately to the right of B?

Introduction / Context:
This linear seating puzzle requires deducing who must sit immediately to the right of B given fixed positions for ends and center seats, plus one additional relative position.

Given Data / Assumptions:

• Single row with 6 seats numbered left to right 1–6.
• E and F are in the middle seats (3 and 4, in some order).
• A and B are at the ends (1 and 6, in some order).
• C is to the left of A.

Concept / Approach:
Because C is to the left of A, A cannot be at the extreme left (seat 1). Hence A must be at seat 6 and B at seat 1. With E and F fixed in the center (seats 3 and 4), the remaining seats 2 and 5 are for C and D in some order. The person immediately to the right of B (seat 1) is the occupant of seat 2.

Step-by-Step Solution:

Verification / Alternative check:
Try to place A at seat 1. This violates “C is to the left of A.” Therefore A must be at seat 6.

Why Other Options Are Wrong:

• A is at the far right end (seat 6), not next to B.
• E and F are constrained to the middle seats, not adjacent to B at seat 1.

Common Pitfalls:
Forgetting that the “right of B” is the immediate neighbor at seat 2, not merely someone somewhere to B’s right.

Final Answer:
D