72) In a real property appraisal assignment, what is an appraiser's responsibility under USPAP if a lender refuses to provide a copy of the current agreement of sale of the subject property? A) The appraiser must request a copy of the contract, but if not provided has no further obligations. B) The appraiser must state what efforts were undertaken to obtain the information. C) The appraiser cannot complete the assignment; when there is a known purchase agreement it must be analyzed. D) The appraiser must treat the assignment as a refinance without evidence that there is a transfer of the property