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': 'Demography deals with all except- \nSelect and explain. \nA. Mortality, B. Fertility, C. Morbidity, D. Marriage', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Demography is the scientific study of human population. It focuses its attention on three readily observable human phenomena :-\n\n\nChange in the population size (growth or decline).\nThe composition of population.\nThe distribution of population.\n\n\nIt deals with five "demographic processes", namely fertility, mortality, marriage, migration and social mobility. These five processes are continuously at work within a population determining size, composition and distribution.', 'role': 'assistant'}]