Sec. 10. "Birth parent", for purposes of IC 31-19-17 through IC 31-19-25.5, means:
(1) the woman who is legally presumed under Indiana law to be the mother of biological origin of an adoptee;
(2) the man who is legally presumed under Indiana law to be the father of biological origin of an adoptee; or
(3) a man who establishes paternity of a child born out of wedlock:
(A) in a court proceeding; or
(B) by executing a paternity affidavit under IC 16-37-2-2.1.