I would say only choose one of the subjects in the title because their contents are similar and universities don’t like it when you have similar subjects. Also, some universities don’t like accounting a level and often put it in the “non-preferred” (I don’t really remember what that’s called but it’s sth like that) column. So I’d suggest either economics or business. Although, personally, I think economics is better because it has more maths in it, it’s up to you. I’d also recommend taking a science subject in case you have a change of heart later on