Five boys in a row – who stands in the middle? Rules: C stands at the extreme right. D is to the right of E. B is to the left of E but to the right of A (A … B … E). Determine the boy in the exact middle position.

Introduction / Context:
This is a 5-seat single-row ordering problem with an extreme fixed (C at far right) and two relational constraints. We must identify the central (3rd) seat occupant.

Given Data / Assumptions:

• C is at the extreme right (seat 5).
• D is to the right of E ⇒ E … D.
• A … B … E (B is left of E but right of A).

Concept / Approach:
With C fixed at 5, fit A, B, E, D into seats 1–4 while respecting A < B < E and E < D. Only one linearization satisfies all constraints without conflict.

Step-by-Step Solution:

Verification / Alternative check:
Trying E at seat 4 would force D at 5, which conflicts with C fixed at 5. Any other placements violate either A … B … E or E … D.

Why Other Options Are Wrong:
A, B, C, D do not occupy the central seat in any valid arrangement.

Common Pitfalls:
Forgetting that “extreme right” is absolutely fixed, leaving too few slots for E and D.

Final Answer:
E