Hi there I am studying a BAC OIB option Science in France. On their website for this qualification, and on my predicted grades, they asked for 13s as an average overall and in Maths, Chemistry and Biology. In the mail they want 15 Chemistry. But I am in a different qualification system to you so it will be hard for you to make any meaningful comparisons. I too only had one interview, on Tuesday last week, and this is my only offer. So I guess I better redouble my efforts in Chemistry. Good luck to you, the waiting is horrible.