Final grades

<p>So hi, I just got accepted to UNC in-state. On the little acceptance letter thing, it said that "If you are currently enrolled in courses, we require that you continue to achieve at the level that enabled us to offer you admission and that you have your final transcript sent to us as soon as it becomes available."
I am really nervous because although I'm sure i'll make A's in all my classes, I'm pretty sure I'll make a D or a C in AP Calc BC. Is there a big chance that I'll get my acceptance revoked? So paranoid now!</p>