It’s always good to think about these things. You are in an “away at school status” as a civilian college student. You might be living in College Town, but that is not your place of permanent residence at this time. Presumably your driver’s license shows your home address. If you have registered or will register to vote, your District will be where that home residence is, and where your Congressional Rep represents you. Your parents presumably count you as a dependent on taxes, and they would use the residence they count as their primary for tax purposes.
There are some variations on this, if the student is emancipated, or the parents are no longer together and two primary residences are involved. There is no ‘“double the fun option,” you can still only apply to 1 MOC.
Note for new readers interested in USMMA, they allow a Representative nom from any Rep in the state of residence, different from the DOD SAs. USCGA, of course, is not required to participate in the nom process.