Will having a B lower my chances considerably?

<p>as a soon-to-be yale freshman with tons of friends who have been admitted to ivy leagues, i can tell you that when they want you, they WANT you and it matters little what else you do. i’ve got a friend who was admitted to harvard this year (NOT a URM, mind you) who had a 65 in ap calc on her midyear report. now if that doesnt say something about admissions, i dont know what does.</p>