5.—(1) A person shall be an excepted student if–
(a)he has not been ordinarily resident in the United Kingdom and Islands throughout the 3 year period referred to in regulation 6(a); or
(b)being a national of a member state of the European Community or the child of such a national he has not been ordinarily resident in the European Economic Area throughout that 3 year period,
by reason only that he, his spouse or his parent was temporarily employed outside the United Kingdom and Islands or, as the case may be, outside the European Economic Area.