This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'What is the number of under-five deaths globally in 2010? \nSelect and explain. \nA. 6 million, B. 8 million, C. 10 million, D. 12 million', 'role': 'user'}, {'content': "Answer: A \nExplanation: Park's textbook of preventive and social medicine 23rd edition. * 6.2 million under 5 deaths have occurred in year 2013.", 'role': 'assistant'}]