Where is it acceptable to leave your vehicle's front wheels when parked downhill?

When parking downhill, it is essential to turn your vehicle's front wheels toward the curb. This practice is crucial for safety reasons. If the vehicle were to roll, the wheels would make contact with the curb and prevent the car from rolling into the street, thereby reducing the risk of an accident.

Turning the wheels toward the curb helps to ensure that gravity will keep the vehicle stationary, rather than allowing it to drift down the slope. This is particularly important in hilly areas where even a slight incline can cause a vehicle to move unexpectedly.

The other options may represent various parking practices, but they do not ensure the same level of safety in downhill parking situations. Simply leaving the wheels turned straight or in any direction does not provide the same preventive measures against the vehicle rolling away.