Six friends A, B, C, D, E, F sit in a row facing East. C is between A and E (A … C … E or E … C … A). B is immediately to the right of E and to the left of D (E–B–D consecutive). F is not at the right end. Who sits between B and C?

Introduction / Context:Consecutive block (E–B–D) plus “C between A and E” and the end restriction for F together force a unique layout.

Given Data / Assumptions:

• Row positions 1–6 left to right; all face East.
• E–B–D occupy three consecutive seats in that order.
• C lies between A and E (in order E–C–A or A–C–E).
• F is not at the rightmost seat.

Concept / Approach:Place E–B–D starting at seats 2–4 to leave room for “C between A and E” to the right while keeping F off the right end. This yields a consistent, unique arrangement.

Step-by-Step Solution (one valid derivation):

Verification / Alternative check:Any attempt to place F at seat 6 violates “F not at right end.” Shifting E–B–D block breaks the “C between A and E” condition.

Final Answer:D