(a) that further information or material be submitted by an applicant or a registrant within a specified period of time,

(b) that the authenticity, accuracy or completeness of information or material at any time submitted by an applicant or registrant be verified by affidavit, or

(c) that the applicant or the registrant or any partner, officer, director, or trustee of, or any person performing a similar function for, the applicant or the registrant, or any employee of the applicant or the registrant, submit to an examination under oath by a person designated in writing by the Executive Director.