(a) The petitioner and the individual to be adopted shall appear at the hearing on the petition, unless the presence of either is excused by the court for good cause shown.
(b) The court may continue the hearing from time to time to permit further observation, investigation, or consideration of any facts or circumstances affecting the granting of the petition.
(c) If at the conclusion of the hearing the court determines that the required consents have been obtained or excused and the required period for the withdrawal of consent and withdrawal of relinquishment has passed and that the adoption is in the best interest of the individual to be adopted, it may issue a final decree of adoption.
(d) If the requirements for a decree under subsection (c) of this section have not been met, the court shall dismiss the petition and the child shall be returned to the person or entity having custody of the child prior to the filing of the petition.