I also think she needs to look into this more op, I’d be concerned she’s trying to make it as easy as possible and not looking into what work is actually required, either for the a levels, or the degree itself.
It’s one thing to get into a uni, but a degree is harder than a level, each degree year gets harder still and you need to pass the previous year to continue.
There is a big jump from gcse to a level, and the jump from a level to degree is enormous.
She needs to do what she can to prepare for that leap at a level. And to give her options, as such, putting something like English or a science in the mix will help her.
I know she’s young, but they all are, it’s an even playing field. I’d urge her to think this through further, in terms of what she’s trying to achieve and understanding the work associated with it.
As said, the work at as, then a level. Is nothing compared to the work increments at each year of a degree. That’s the whole point, it leaps forward in terms of complexity and workload.