first term grade

<p>So the first marking period out of four just finished, and I have all A's (mostly 95's and above) but one C (78 for AP Calc BC). this is the first time i've ever received a C. In my four years of high school, i've gotten all A's except two high b's for AP Physics B and AP Chem. i'm fourth in my class of around 150 students, and my school is in the top 100 in the US. How badly will that C hurt me as i apply to college? i know i'll bring my grades up :(</p>