What is the right course of action here?

In this scenario, you're dealing with a situation involving right of way at an intersection. The yellow car is likely waiting to proceed while the bus and motorbike are already moving.

According to German traffic regulations, vehicles already in the intersection or coming from the right generally have the right of way. The motorbike can proceed because it is already in motion, and as a driver of the yellow car, you must give way.

Your correct action would be to wait for the motorbike to clear the intersection, and then you can proceed. If the bus were to turn or move forward, it would also have precedence over you. Understanding right of way is crucial for maintaining safety and order on the road.