You have to change the front-right wheel of your triaxial motor vehicle on flat ground. What should you be aware of when doing so?

You selected the correct answer. When changing the front-right wheel of a triaxial motor vehicle on flat ground, it is important to secure the vehicle against rolling. According to German traffic safety rules, this is best done by placing two wheel chocks on one of the wheels on the rear axle. This ensures that the vehicle cannot move while you are changing the front wheel, as the rear wheels provide the safest position for stabilizing the vehicle. The other options would not adequately secure the vehicle for this situation. Remember: always secure the vehicle on the opposite side of the wheel you are changing, and use chocks on the wheels least likely to leave the ground. This keeps you safe when working on the vehicle.