Final answer:
The proper hand signal for indicating a left turn is the left hand pointing straight out, parallel to the road.
Step-by-step explanation:
The correct hand signal indicating a left turn is a. the left hand pointing straight out. This hand signal is used by cyclists and drivers of motor vehicles when the vehicle's turn signals are not functioning, or when hand signals are required, such as during a driving test.
To properly execute this signal, you extend the left arm straight out of the window, keeping it level with the car and parallel to the road. This straightforward gesture effectively communicates the intention to turn left to other road users. The proper hand signal indicating a left turn is a. the left hand pointing straight out.
Using the left hand to point straight out is a universally recognized and standardized signal to indicate a left turn. This hand signal is important for ensuring the safety of drivers and pedestrians on the road, as it communicates the intention of the driver to turn left.