Problem: A 14-year-old girl is admitted for left-sided paralysis. During a neurological evaluation, when the physician lifts the patient's hand and drops it onto her face, her hand falls next to her face. When examining her paralyzed leg, the physician notes pressure in the hand that is placed under the paralyzed leg when attempting a straight leg raise. Based on these findings, the patient is diagnosed with conversion disorder. When explaining the diagnosis of conversion disorder to the patient and her family, which statement is the most appropriate? A. "Paralysis is intentional, and she is feigning symptoms." B. "It is unlikely that her symptoms will remit within the next year." C. "She should be referred to a psychiatric clinic immediately for psychotherapy." D. "It is important to understand that this paralysis is involuntary."