Which of the following signals requires using your left arm extended horizontally?

Using your left arm extended horizontally is a traditional hand signal for indicating a left turn. This gesture is standardized and recognized by drivers, ensuring that your intentions are clear to those around you.

When preparing to make a left turn, extending the arm out to the side provides a clear and visible signal to other road users, including motorists, cyclists, and pedestrians. This hand signal is especially important in situations where turn signals or brake lights may be less visible, or when riding a motorcycle, where the visibility of signals is crucial for safety.

Other signals, such as those for stopping or turning right, use different arm positions. For instance, an upward bent arm indicates a right turn, while a downward bent arm signals for slowing down or stopping. Understanding and using these hand signals helps maintain safety and communication on the road.