Retracted Admissions?

<p>This question is probably asked often, but how bad must my grades be to get an acceptance taken away from Michigan/NC State (not too worried about State)</p>

<p>I got 2 Cs junior year and got into both the schools. What If I got four C's this year, taking 5 s and 2 honors compared to two APs and 5 honors last year? PS I am currently battling a medical condition and missed 24/90 days first semester, if anything bad did come out of my current grades, I have teachers/counselors to back me up. Also, I have been granted deferred admissions to Michigan already on the basis of illness. Should I worry? How bad do grades have to be to get your acceptance taken away? By brother got 3 Cs last semester alone senior year and UNC only sent a letter saying try harder.</p>

<p>4 C’s out of 7 classes will put you in the legitimate danger zone.</p>

<p>4 Cs in two semesters, so that means 14 classses, right?
After looking though, I guess I’m paranoid, it only looks like 2 C’s. But I still want to know what people think.</p>