A 22-year-old woman presents with an acute onset of decreased sensation in her right hand. A history of present illness reveals that her father had a myocardial infarction yesterday and died before she could take him to the hospital. Her past medical history is unremarkable. Her vital signs are blood pressure 120/80 mm Hg, heart rate 76 bpm, and respiratory rate 18 breaths/min. What is the most likely diagnosis? A. Factitious disorder B. Conversion disorder C. Neuritis of the radial nerve D. Depersonalization/derealization disorder