What lighting is required for a parked vehicle on a public highway between sunset and sunrise?

The correct answer is that a parked vehicle on a public highway between sunset and sunrise must display at least one white or amber lamp in front and a red light on the rear. This requirement is in place to enhance visibility and ensure that the parked vehicle is easily identifiable to other road users during low-light conditions, such as at night or during poor weather.

Having a white or amber light in front serves to signal the presence of the vehicle to oncoming traffic, reducing the risk of accidents. The red light at the rear indicates that there is a stationary object ahead, further helping drivers to avoid collisions. This combination of lights is important for safety on public roadways, especially in areas with limited visibility.

The other options do not meet the legal requirements for lighting on parked vehicles. For instance, having only a red lamp at the front or blue lights does not conform to the established guidelines and could lead to confusion or danger on the road. Thus, the requirement for specific colored lights ensures clarity and enhances safety for all road users.