; (B) that the custodian of such documentary material answer in writing written questions with respect to such documentary material; or (C) the production of any combination of such documentary material or answers. (2) The provisions governing the authority to issue, use, and enforce civil investigative demands under section 3733 of title 31 (known as the False Claims Act ) shall govern the authority to issue, use, and enforce civil investigative demands under paragraph (1), except that for purposes of that paragraph— (A) a reference in that section to false claims law investigators or investigations shall be applied as referring to investigators or investigations under this chapter; (B) a reference to interrogatories shall be applied as referring to written questions, and answers to such need not be under oath; (C) the statutory definitions for purposes of that section relating to false claims law shall not apply