(b) refuses to be examined before, or to answer any questions put by, the House or a committee, or to produce any paper, book, record or other document which he or she has been required to produce by an order made under the provisions of section 9, unless such question or paper, book, record or other document is not, in the opinion of the Speaker or the chairperson of the committee, as the case may be, material to the subject of the inquiry of the House or committee or such refusal is allowed under the provisions of section 14 of this Act,