(C) A document recording a verbal telephonic consent by the donor or any other person specified in Section 7151 of the Health and Safety Code, witnessed and signed by no fewer than two members of the requesting entity, hospital, eye bank, or procurement organization, memorializing the consenting person's knowledge of and consent to the general intended use of the gift. .
The form of consent obtained under subparagraph (A), (B), or (C) shall be kept on file by the requesting entity and the official agency for a minimum of three years.