What is the right course of action?

In the given scenario, you are approaching a yield sign, which indicates that you must give way to other vehicles. The blue truck is straightforward and the tractor is turning, meaning both have movements that require you to yield.

The correct actions are to allow the blue truck to pass through and to allow the tractor to make its turn. This is consistent with the German traffic regulations concerning priority at intersections marked by yield signs.

When you encounter a yield sign, you must ensure that you stop or slow down to give way to vehicles already on the main road or those that are in close proximity to your path, such as the truck and tractor in this case. Hence, both choices are essential for safe driving and compliance with the law.