In short, DS breezed on with his GCSE's no problems there, for A levels he had chosen maths, physics, chemistry and economics, recent internal test's were all A's (chemistry, physics and maths) all results of a very good standard, showing he is well in grips with covered ground so far, except economics, he got a week B, my and his question is: Can he change(drop) economics for further maths, or is too late?
Do sixth forms allow this?
Any advice is appreciated, thanks.