Six friends in a row facing East — who is at the left end? Friends A, B, C, D, E, F face East in one row. C is between A and E. B is just to the right of E and left of D (… E, B, D … contiguous E–B). F is not at the right end. Who is at the left end?

Introduction / Context:
We must place six people with one adjacency (E–B) and a “between” constraint, then identify the leftmost person.

Given Data / Assumptions:

• E immediately left of B; B left of D.
• C between A and E (order A … C … E).
• F not at the right end.
• Facing East informs only ends; left-to-right order is as viewed.

Concept / Approach:
Anchor the E–B block and fit A … C … E to its left to satisfy “C between A and E.”

Step-by-Step Solution:
Place E=3, B=4 (middle block).Then A … C … E must use positions 1–2–3 as A=1, C=2, E=3.Remaining D and F take 5 and 6, with B left of D ⇒ D=6, F=5 (also keeps F off the right end).Row: 1 A, 2 C, 3 E, 4 B, 5 F, 6 D ⇒ left end is A.

Verification / Alternative check:
Other placements of the E–B block that satisfy “A … C … E” still force A to the extreme left.

Why Other Options Are Wrong:
F/C/B cannot be at position 1 in any valid arrangement meeting all clues.

Final Answer:
A