This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Social & Preventive Medicine
[{'content': '"Secular trends\' relates with \nSelect and explain. \nA. Age, B. Religion, C. Time, D. Place', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (C) Time > The term secular trends implies changes in the occurrence of disease i.e. a progressive increase or decrease over a long period of time generally several years or decades> Cyclic trends : refer to diseases occurring in cycles spread over short period of time which may be days, weeks, months or years> Seasonal tread: refers to diseases due to seasonal variation', 'role': 'assistant'}]