This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pediatrics
[{'content': 'Male pseudo hermaphroditism: \nSelect and explain. \nA. XX genotype, male external genitalia, B. XY genotype, female external genitalia, C. Testis and ovary both present, D. Male external genitalia and ovary present', 'role': 'user'}, {'content': "Answer: B \nExplanation: b. XY genotype, female external genitalia(Ref: Nelson's 20/e p 2750-2759, Ghai 8/e p 532)Male pseudohermaphrodites are genetic males (45,XY), with testes, but their external genitalia & appearance are that of a female.", 'role': 'assistant'}]