Why are you required to stop now?

Your answer is correct because trams have special priority rules in German traffic law. You are required to stop for a tram if it signals or if it is approaching and there is a risk of collision, even if other vehicles or cyclists are present. Trams cannot steer around obstacles, so other road users must give way and stop when necessary.

The cyclist and the white car do not impose an automatic stop in this situation. The cyclist must be taken into account to maintain safety, but stopping is specifically required because of the tram’s priority. This rule ensures safety around trams, which have limited maneuverability and priority over most other traffic.