question: Q:A 25-year-old woman comes to the physician for the evaluation of blindness in her right eye that suddenly started 1 hour ago. She has no feeling of pain, pressure, or sensation of a foreign body in the right eye. She has a history of major depressive disorder treated with fluoxetine. The patient attends college and states that she has had a lot of stress lately due to relationship problems with her partner. She does not smoke or drink alcohol. She does not use illicit drugs. She appears anxious. Her vital signs are within normal limits. Ophthalmologic examination shows a normal-appearing eye with no redness. Slit lamp examination and fundoscopy show no abnormalities. A visual field test shows nonspecific visual field defects. An MRI of the brain shows no abnormalities. Which of the following is the most likely diagnosis?? 
  {'A': 'Malingering', 'B': 'Factitious disorder', 'C': 'Retinal detachment', 'D': 'Somatic symptom disorder', 'E': 'Conversion disorder'},