(A) A document of gift is valid if executed in accordance with any of the following:
(1) Sections 2108.01 to 2108.29 of the Revised Code;
(2) The laws of the state or country where it was executed;
(3) The laws of the state or country where the person making the anatomical gift was domiciled, has a place of residence, or was a resident or national at the time the document of gift was executed.
(B) If a document of gift is valid under this section, the law of this state shall govern the interpretation of the document of gift.
(C) A person may presume that a document of gift or amendment of an anatomical gift is valid unless that person knows that it was not validly executed or was revoked.