How do I enter a Double Period Internship on the Common App/Coalition? Pls Answer

Hey, I am currently filling out my common app and this year, my senior year, I am doing a double period class internship. This means that I leave school 2 periods early and go work at a dental clinic for a couple of hours, 3 times a week. Technically it is a class, and I do get official grades like my other classes. However, where do I input it in the system since there is no dropdown for “Internship?” Do I choose Other?
Please let me know,

Thanks!

how does it show up on your school transcript? sounds like an internship offered through ROP