Please Help! Will schools rescind acceptances if one of my final grades is a C?

Hello CC, I have a slight issue. I’ve just wrapped up my first semester with really solid grades and am about to take my midterms, which are not sent on the midyear report. However, a line up of unfortunate events has led administration to believe that I am part of a plot to cheat on one of the midterm exams. I was never part of the group who planned this, but administration believes that I am and will call me down to meet with them sometime soon. I’m obviously going to explain my scenario, but in the case that they don’t believe me, I will get a 0 on the midterm, making my final grade a C at the worst. My high school does not contact colleges about academic dishonesty, so if they don’t believe me, the only thing affecting my admissions would be this C on the final transcript. I applied to a lot of T20s and was accepted to Georgia Tech. Are these schools likely to rescind if all of my other final grades are As, and does anyone have any tips for how to deal with this? Thank you in advance!

http://talk.qa.collegeconfidential.com/college-admissions/2122350-faq-rescission-of-admission-offers.html