What is the right course of action?

In this traffic scenario, the key points to consider are the vehicle interactions, particularly with the bus and motorcycle, as well as the right of way rules.

1. The motorcycle is in a position that indicates it is already on the road and may be passing through. Therefore, you must allow it to continue without interruption.
2. The bus has the right of way in this situation, especially if it is at a bus stop or preparing to pull out into the lane. You must yield to the bus when it is attempting to enter traffic.

According to German traffic law, vehicles already in motion, especially public transport like buses, often have priority over other vehicles, unless stated otherwise by signs. This is to maintain smooth traffic flow and allow public transport to operate efficiently.

In summary, you should allow the motorcycle to pass and yield to the bus, as both choices contribute to safe and orderly traffic behavior.