@MassHSGuy77 - You should be fine. Most colleges will turn a blind eye on a single senior C. especially when it’s in a tough AP class.
The only way that this MIGHT be an issue is if you will attend one of those hyper-selective places where most admitted students got straight A’s all through high school. If you, too, had straight A’s right up until this year, but now you have not only a C but also B’s in your more demanding academic classes, with your A’s in band, gym, yearbook, etc., then you could get a warning letter from your college asking about the downturn. But having your acceptance rescinded seems highly unlikely.