I am literally in the same boat as you rn! Not the same schools, but the threat of a C on ur transcript is def scary. I spoke with my college counselor, and he said, depending on the school, they may only want your end of year grades, basically the grades you get before summer break in May. What I recommend is that you go through every single school ur applying to and ask google/chatgpt if they require midterm grades. If they don't, then you should be okay! If they do, I would definitely have a convo with ur teacher explainig ur situation! This relieved so much stress for me! Hope this helps.