3The Secretary of State may remove a person from office as a member or as chairman of the Authority if satisfied that—
(a)he has without reasonable excuse failed, for a continuous period of three months, to carry out his functions as a member or (as the case may be) as chairman;
(b)he has without reasonable excuse been absent from three consecutive meetings of the Authority;
(c)he has been convicted (whether before or after his appointment) of a criminal offence;
(d)he is an undischarged bankrupt or his estate has been sequestrated and he has not been discharged, or he has made an arrangement with, or granted a trust deed for, his creditors;
(e)he has failed to comply with the terms of his appointment; or
(f)he is otherwise unable or unfit to carry out his functions as a member or (as the case may be) as chairman.