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: Social & Preventive Medicine
[{'content': 'PQLI included are -a)  Literacyb)  Infant mortalityc)  Incomed)  Life expectancy at birth \nSelect and explain. \nA. ac, B. ab, C. abc, D. c', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Life expectancy at 1 year (not at birth) is included', 'role': 'assistant'}]