There shall be paid out of moneys provided by Parliament—
(a)such remuneration (whether by way of salaries or by way of fees) and such allowances to the members of the Authority or of the Scottish Committee, and such allowances to the members of the Advisory Council, as the Ministers, with the approval of the Minister for the Civil Service, may determine;
(b)such sums as may from time to time be required by the Ministers for making advances or grants under this Part of this Act to the Authority ;
(c)such expenses as may be incurred under this Part of this Act by the Ministers in relation to any inquiry held thereunder by their direction, and such other administrative expenses as may be so incurred by them.