You are holding a driving permit class D. Your bus has the following specifications: - empty mass 13000 kg - permissible total mass 18000 kg - permissible towed load 2000 kg Which trailer are you allowed to tow?

In your situation, since you hold a class D driving permit, the regulations allow you to tow a trailer as long as the total permissible mass of the vehicle and trailer combination does not exceed the maximum allowed for your driving class.

Your bus has a permissible total mass of 18,000 kg, and it can legally tow a load of up to 2,000 kg. The trailer's weight options presented were 750 kg, 1000 kg, and 2000 kg. Any of these trailers can be towed safely within the limits set by your vehicle's specifications.

In this case, the first answer (750 kg) was correct because any trailer up to 2,000 kg is permissible for towing. While you confirmed the correct choice, it’s also important to recognize the flexibility in options available under the law, as multiple correct answers exist within the limits. Understanding this aspect helps ensure compliance while maximizing the permissible towing capacity.