question: Q:A 17-year-old girl is brought to the physician because she has not had a menstrual period. There is no personal or family history of serious illness. Examination shows normal breast development. Pubic hair is coarse and extends to the inner surface of the thighs. Pelvic examination shows a blind vaginal pouch. Ultrasonography shows ovaries, but no uterus. Which of the following is the most likely underlying cause of this patient's symptoms?? 
  {'A': '17-alpha-hydroxylase enzyme deficiency', 'B': 'Müllerian duct agenesis', 'C': 'Androgen insensitivity', 'D': 'Pure gonadal dysgenesis', 'E': 'Failure of Müllerian duct recanalization\n"'},