; (B) if such demand is for the production of documentary material— (i) describe each class of documentary material to be produced with such definiteness and certainty as to permit such material to be fairly identified; (ii) prescribe a return date for each such class which will provide a reasonable period of time within which the material so demanded may be assembled and made available for inspection and copying or reproduction; and (iii) identify the custodian to whom such material shall be made available; (C) if such demand is for answers to written interrogatories— (i) set forth with specificity the written interrogatories to be answered; (ii) prescribe dates at which time answers to written interrogatories shall be submitted; and (iii) identify the custodian to whom such answers shall be submitted; and (D) if such demand is for the giving of oral testimony— (i) prescribe a date, time, and place at which oral testimony shall be commenced; (ii) identify an investigator who shall conduct the examination and the custodian to whom the transcript of such examination shall be submitted; (iii) specify that such attendance and testimony are necessary to the conduct of the investigation; (iv) notify the person receiving the demand of the right to be accompanied by an attorney and any other representative