2nd opinions on DS' MFL options

[Extrahotchilli]

I posted on here in January when DS (in year 12) was starting to research university courses and received helpful advice. He's now definitely decided to do modern foreign languages but is stuck on a couple of questions and I wonder if anyone could help because I've seen quite a few knowledgeable posts on MFL recently. His questions are

1. Is it OK to do MFL languages on their own or would it be better to combine his two languages (French and Spanish) with business? He thinks the latter would make him more employable but is v unsure as he's never studied business b4 (not even at GCSE). He's found a handful of courses that allow business as a minor (33% of degree rather than 50%) - see 3 below - which makes it less risky he thinks
2. If he does pure MFL, he wants to continue with French and Spanish post A-level but is quite keen on studying a third language ab initio. He is thinking German would be the most useful/fun. Is three languages too much? (NB: he could not do three languages if he chose MFL with business.)
3. What do you think of his uni choices for modern languages with business (if he goes down that route): Birmingham (AAB - a bit of a stretch), Nottingham (ABB), Newcastle (ABB), Leicester (ABB), Sheffield Hallam (BBC). They are the only courses he can find that offer business as a minor (33% of degree) and permit two languages alongside (most unis - Bath, Exeter, Lancaster etc - only allow one language and are 50/50)
4. If he does pure MFL (three languages), he has a far wider choice of universities, including Southampton, Bristol, Liverpool, Lancaster and Sheffield.

Sorry for the long post and thank you in advance.

I don't know how highly Warwick ranks specifically for languages, but I do know that it is very high in university rankings generally. Therefore, assuming it has at least a decent languages department, I think Warwick would be a good university for your DS to have on his cv.