How much would a C+ affect my chances for the Ivies/Stanford/MIT given 5 on AP, 800 on SAT2?

@ProspectsOne‌ This is the only case where you would send in an official score report during application. Let your GC mention it in your rec and send the score report to show that, although you did poorly in the class, you know the material. I did this with calc BC. My school is nationally known and our BC curriculum is pretty rigorous; due to other circumstances I ended up with a B- in the class but a 5 on the exam. During college interviews, they were very impressed by this and asked me to send the score report to verify.

PS (TJHSST? PM me if so because I have specific advice)