What is the correct hand signal for a left turn?

The correct hand signal for a left turn is to extend the left arm straight out from the driver's side window. This simple and clear gesture communicates the intent to other drivers and pedestrians on the road effectively. Hand signals are important, especially in situations where a driver’s brake lights or turn signals might not be visible, such as on a bicycle or motorcycle. By using this hand signal, the driver ensures that their intention to turn left is clearly understood, promoting safety on the roadway.

The other options describe different hand signals that indicate different actions. For example, a bent arm raised upward indicates a right turn, while extending the right arm out signals a right turn as well. Raising both arms above the head does not convey any standard traffic intention and can confuse other road users. Understanding these signals is crucial for effective communication while driving.