Eric's Parents Recently Divorced

Eric's parents recently divorced. His behavior is beginning to worry teachers at school, so they refer him to some therapy resources in town. When he arrives in your office and you are obtaining consent for treatment, which parent is required to give consent for his treatment?

A) The parent(s) who hold(s) legal custody
B) The parent(s) who hold(s) physical custody
C) The parent with whom the child spends the most time
D) Whatever gets the child the help that he needs