How can you verify that you are stopped behind a vehicle at a safe distance?

Question

When stopped behind another vehicle, stay back at a distance that allows you to see the ground under the vehicle’s rear wheels. This will allow you to safely move around the vehicle if needed. A space cushion will also help if you are parked on a hill and the car in front of you begins to roll backward after the driver releases the brake pedal.

Accepted Answer

You can see the ground under the vehicle's rear wheels.

Answer

You can read its license plate.

Answer

You can read its bumper stickers.

Answer

You can count the number of passengers in the vehicle.