This isn’t triggered by the premises, because it requires us to already assume that Germany alone has an obligation to help these countries. It also leads to the wrong conclusion, that only Germany should help.

We know that only Germany is able to economically resuscitate these neighbors, so this rule is triggered. And it successfully leads us to the conclusion that Germany should provide aid! In other words, this matches the political scientist’s assumption and bridges the gap.

This doesn’t trigger, because we don’t know that Germany can only afford to aid a few countries. It also leads to the wrong conclusion, that Germany should not provide aid to more than just a few countries. So, this doesn’t help us.

This is so close, but gets the correct rule backwards. We’re looking for a condition sufficient for Germany to provide aid, but this creates a necessary condition instead. That means it still doesn’t bridge to the conclusion that Germany should provide aid.

The argument never involves the idea that Germany can only afford to help a few other countries, so this is irrelevant on that basis alone. The argument also never brings up the idea that Germany should limit its aid to just a few countries.