A turn signal should be used when:
Correct answer: D – All of the above
A driver must signal before turning or moving right or left whenever other traffic may be affected. The driver manual also directs motorists to signal before leaving a parking place, merging onto a freeway, and entering an exit lane. Signaling communicates the intended movement but does not itself give the driver the right-of-way.
Source: Ala. Code § 32-5A-133 — Turning Movements and Required Signals, Alabama Driver Manual — Ch. 3, “Starting from a Parking Place”, Alabama Driver Manual — Ch. 8, “Entering the Freeway” and “Leaving the Freeway”


