What should you do when approaching a parked vehicle?

Answer: C — Stop and yield

When approaching a parked vehicle, the best course of action is to come to a complete stop and yield to any potential oncoming traffic. This is important because you do not know if the parked vehicle is occupied or if the driver is exiting the vehicle. If you were to blink your headlights, it could potentially startle the driver and cause them to make an unexpected movement. Speeding up could also be dangerous, as you would not have enough time to react if the driver suddenly did emerge from the vehicle. Honking your horn could also startle the driver and may not give them enough time to react. By stopping and yielding, you are allowing yourself and the other driver enough time to assess the situation and proceed safely.