The final 4 checkbox questions when submitting an app concern the IDFA, whether your app serves ads, attributes installs to this app etc.
Does anyone know what should be answered here, I can not find a definitive answer for Chartboost for example (they say they respect them) but not what you should answer?
Chartboost’s comment is kind of confusing, but it sounds like they are saying that they do each of the three things (within the guidelines that Apple allows) that you could check regarding Apple’s IDFA.
It makes sense that Chartboost does do each of the three things that Apple asks about.
serve advertisements within an app (yes),
attribute an app installation to a previously served advertisement (yes, Chartboost is based on driving downloads of games), and
attribute an action taken within an app to a previously served advertisement (this might be reward based videos, but I am kind of confused what it means… kind of sounds like the second bullet).