- Step 1: Arrangement: A, C, B, D, E (1, 2, 3, 4, 5).
- Step 2: B in position 3, immediate left = position 2 = C.
- Step 3: Verify: C between A and B, so A, C, B is correct.
- Step 4: Other arrangement (A, C, B, E, D) invalid (D at end).
- Step 5: Check options: Option (2) is C, which matches.
- Step 6: Confirm B's position and neighbor.