What must you be prepared for in this situation?

You answered correctly by choosing all three options, which is important in this situation.

1. You must be prepared for oncoming traffic appearing because your view of the road ahead is blocked by the truck and the red car. This means you cannot see if vehicles are coming from the opposite direction, so you must proceed carefully and be ready to stop or give way.

2. The truck driver might jump down onto the carriageway. When a vehicle is stopped partially on the roadway, occupants may get out unexpectedly. This can create a sudden hazard, so you need to be alert and ready to react.

3. Traffic signs might be concealed behind the truck. Since your view of the roadside and any signs is blocked, you must be cautious and remember that important warnings or instructions might be hidden from view.

In German traffic rules, situations with obstructed views require heightened attention and readiness for unexpected events, as these conditions increase risk. Always reduce speed, stay alert, and be prepared to yield or stop safely.