A D in AP statistics good?? If conditionally accepted?

ok so i got conditionally accepted to csu fresno though i had to talk to a admission counselor and he said that he'll put in a pplication for me for admissions and he will ask admisions to rethink their decision of denying me so what im worried about is that i know im in the border line but the thing is what should i do if i have a D in my ap stats cl should i stay in it or should i get out considering i already have my math courses done ( I dnt thnk going back to algebra2 is wise considering i ped both semesters with a B) and so im in the border line and i dnt know what to do pls help......