What lights should be shown on a parked car at night on an unlit public road?

When a car is parked at night on an unlit public road, it is important to ensure that the vehicle is visible to other road users to prevent accidents. The correct choice indicates that at least one side lamp, both front and rear, should be illuminated on the side nearest to the center of the road. This practice enhances visibility and alerts approaching drivers that a vehicle is stationary, reducing the risk of collisions.

Using side lamps provides enough light to differentiate the parked car from the dark surroundings without being as distracting as headlights or flashing lights might be. This approach is especially crucial in unlit areas where a lack of street lighting makes it harder for other drivers to see parked vehicles. Hence, illuminating the side lamps effectively meets the safety regulations while ensuring that the parked vehicle is clearly noticed by others on the road.