Regardless of what you fill it out as on your application, AACOM will put it into whatever category they think is correct. Put it in what you think is the most accurate, and they will check it for you.
Look in the frequently asked questions, last year they had a whole section that listed specific courses and where they would be classified. I went by that list to the best of my ability in filling out my application. If you are really worried about it, you could call AACOM.