It doesn’t matter what you do, that C grade will be there. @skieurope
ETA…one C grade isn’t going to keep you out of college. If you don’t get accepted to an elite school, you will never know why. At this point, you need to discuss a varied list of colleges with varying degrees of competitive admission rates. That is important. Identify one or two sure things for admission that you would like to attend…maybe starting in the middle of your last semester of junior year. Of course, you can research colleges now, but so much can change between now and when you actually apply.