This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'A female with 45X0 genotype has primary amenorrhoea. Most likely diagnosis is: \nSelect and explain. \nA. Gonadal Dysgenesis, B. Androgen Insensitivity syndrome, C. Meyer Rokitansky Kuster Houser Syndrome., D. Congenital adrenal Hyperplasia', 'role': 'user'}, {'content': "Answer: A \nExplanation: The genotype XO belongs to the Turner's syndrome which is characteristic of gonadal dysgenesis, sho stature and external and internal dysmorphic features. The gonadal dysgenesis leads to primary amenorrhea. Ref: Clinical Obstetrics and Gynaecology by Brian A. Magowan, Philip Owen, James Drife, Pages 52-53 Disorders of Sex Development By John M. Hutson, Garry L. Warne, Sonia Grover, Page 91.", 'role': 'assistant'}]