A. On entry of the decree of adoption, the relationship of parent and child and all the legal rights, privileges, duties, obligations and other legal consequences of the natural relationship of child and parent thereafter exist between the adopted child and the adoptive parent as though the child were born to the adoptive parent in lawful wedlock. The adopted child is entitled to inherit real and personal property from and through the adoptive parent and the adoptive parent is entitled to inherit real and personal property from and through the adopted child the same as though the child were born to the adoptive parent in lawful wedlock.
B. On entry of the decree of adoption, the relationship of parent and child between the adopted child and the persons who were the child's parents before entry of the decree of adoption is completely severed and all the legal rights, privileges, duties, obligations and other legal consequences of the relationship cease to exist, including the right of inheritance. This subsection does not apply to communication rights established pursuant to section 8-116.01.
C. If the adoption is by the spouse of the child's parent, the relationship of the child to that parent remains unchanged by the decree of adoption.