Someone I know is looking to apply for Computer Science at Cambridge and is currently doing A-Levels in Computer Science, Maths, Biology, and German. They are expecting A* predictions in CS, maths, and bio but a B in German. Will this disadvantage their application a lot even if it isn't even a relevant A-Level for their subject?
They aren't really looking to drop German to be honest.
EDIT: They said they would consider taking German as just an AS if the grade prediction were to really jeopardise their chances, but ideally they would like to continue it to A2.