You are approaching this combination of traffic signs. What must you remember?

Your answer is correct because the combination of these traffic signs has specific meanings in German traffic rules.

The blue circular sign with white arrows indicates a roundabout. Vehicles already circulating inside the roundabout have the right of way. This means you must yield to them before entering. This is why "1. Vehicles in the roundabout have priority" is correct.

The triangular yield sign above indicates that you must give way, reinforcing the priority rule.

Regarding signaling, you are required to indicate when you leave the roundabout to inform other drivers of your intention to exit. You do not have to signal when entering the roundabout because you follow the circular flow, but signaling when exiting is mandatory. That is why "2. You must indicate to leave the roundabout" is correct, and "3. You must indicate when entering the roundabout" is incorrect.

Remembering these rules will help you navigate roundabouts smoothly and safely in Germany.