Final answer:
The primary intervention for shared psychotic disorder is not the separation of the submissive person from the dominant person.
Step-by-step explanation:
The correct answer is D. Separation of the submissive person from the dominant person is the primary intervention. Shared psychotic disorder, also known as folie à deux, is a rare condition where a dominant person (the primary case) develops a delusional belief and the submissive person (the secondary case) comes to believe in and share the same delusion. Treatment for shared psychotic disorder typically involves antipsychotic medications for both the primary and secondary cases, as well as psychotherapy for the non-delusional members of the patient's family. However, separation of the submissive person from the dominant person is not considered the primary intervention, but it may be necessary in certain cases where the shared delusion is causing significant harm or distress.