How could a dangerous situation arise?

You selected the correct answer: the yellow truck could cause a dangerous situation. On German highways, slow-moving vehicles like trucks, especially when traveling close together or preparing to change lanes, can create hazardous situations for faster-moving traffic. It’s important to watch for trucks that might overtake each other or suddenly move into another lane, as their movements are harder to predict and they have larger blind spots. When approaching trucks, always be prepared for unexpected actions and maintain a safe distance to react early and safely. This rule helps drivers avoid the common dangers associated with overtaking or driving near large vehicles on the Autobahn.