I’ve only made it through module 4 but so far I’ve found that the interactive scenarios aren’t helpful at all for the EMA. I think the case studies are helpful for getting to learn a little bit more about the concepts but honestly I think I would’ve handled the EMAs the exact same if I had just skipped the case studies.
I personally haven’t seen a solution sheet to the interactive scenarios. If you can’t get it right the first try just go back in and click some different answers. Eventually you’ll get through it!