The UK and US have very different systems. In the UK, all students have already specialised into A levels (only studying four subjects) before applying to unive

The UK and US have very different systems. In the UK, all students have already specialised into A levels (only studying four subjects) before applying to university. In the US, I think it works differently: some students may have done some AP classes, but these aren't universal and don't represent the same degree of specialisation as A levels.