This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetic Approach to Pediatric Medicine, Subject name: Pediatrics
[{'content': 'Patau syndrome is - \nSelect and explain. \nA. Trisomy 13, B. Trisomy 18, C. Trisomy 21, D. Trisomy 22', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Trisomy 13 Name of syndromeTrisomyEdward18Patau13Cat eye22Down's21", 'role': 'assistant'}]