"Premier group" condition for an application to Mc Gill's faculty of arts,

Hi all, Thank you for those who know or have been in this situation in the previous year if they can help me. I received an offer from Mc Gill’s faculty of arts for a BS of economics and I am so looking forward to it. I am French and will take the French Baccalaureat in June. I am just wondering what does the condition ("to obtain the French Baccalaureat Diploma in the “premier group” means? Does this mean a mention assez bien for the Baccalaureat, or 14 in average or? Thank you again for your help.

It is probably best to ask this question of McGill directly.

It means no “rattrapage”.
There’s diplômé du second groupe, diplômé du premier groupe, diplômé avec mention.