DS has chosen three A levels; history biology and economics. Seemed reasonable until he started looking a little deeper into degree options. He's veering towards a biology degree and found that the vast majority want a second science, which he wouldn't have. His other possible avenue would be an economics degree but most require maths A level.
He's adamant he doesn't want to do maths A level; he feels it's just too difficult. He's an average student who doesn't like to exert himself too much, but he does ok. DH and I think he should swap economics for chemistry to facilitate a biology degree. He's a bit nervous that chemistry will be too difficult. He quite likes chemistry; he's not passionate about it but he's laid back about all his subjects. I"m not a scientist so find it quite hard to give advice.
His plan was to wait until results day and if he gets a 7 in chemistry he will take the A level; he's borderline 6 and 7. Now though he's obviously not taking the exam and not doing any revision for it; we feel he should decide now, especially as his school will start an introductory course to the A levels in the summer term.
Please advise.