What is the proper hand signal for a left turn?

Answer: B — Extend your left arm straight out

The proper hand signal for a left turn is to extend your left arm straight out. This action clearly communicates to other road users your intention to turn left, allowing them to anticipate your move and maintain safety on the road. Hand signals are especially important in situations where the vehicle’s signal lights may not be visible due to the position of the vehicle or in older vehicles that do not have built-in signal indicators. Using the left arm extended straight out is a universally recognized signal for a left turn, ensuring that drivers, cyclists, and pedestrians can easily understand your intentions. This is particularly useful in busy intersections or in circumstances where electronic signal lights may not be functioning properly. Other hand signals, such as raising your left arm at a 90-degree angle or extending your right arm straight out, correspond to different maneuvers (like right turns or stops) and may confuse other road users if used inappropriately. Lowering your arm to your side does not convey any specific turning intention and may lead to misunderstandings. Therefore, extending your left arm straight out is the correct and standard way to indicate a left turn.