Just making sure but I won’t get rescinded from a top 30 school with 2 C’s as my final grades senior year, right? I’ve had C’s on my transcript before so this school knows that I’m not a “perfect” student, and I didn’t go from an A to C, I’ve been around the B- range.
I think you have a fair bit of time to not have two C’s. The general rule is no D or F grades, but I could see that twoC’s might be perceived of as slacking.
Personally, I would talk to your guidance counselor.