What is the correct hand signal for a left turn?

To indicate a left turn, the correct hand signal is to extend your left arm straight out from the driver's side of the vehicle. This position is universally recognized and serves to inform other road users and drivers of your intention to turn left. Hand signals are a crucial form of communication between drivers, especially in situations where the vehicle's turn signals may not be functioning or in certain driving conditions where visibility is limited.

The other options represent different intentions; for instance, extending the right arm straight out signals a right turn, while raising or lowering the left arm at a right angle indicates stopping or slowing down. Understanding these signals enhances safety on the road, ensuring that all drivers and pedestrians are aware of upcoming maneuvers well in advance.