This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiological Study, Subject name: Social & Preventive Medicine
[{'content': 'The study for correlation of genetic disease to consanguinity - \nSelect and explain. \nA. Case Contral Study, B. Cohort study, C. Cross-sectional study, D. Case report', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is \'a\' i.e., Case Control Study " The association of consanguinity with complex disorders can be studied using different approaches. For example, epidemialogial surveys could compare the frequency of a disorder in the progeny offirst cousin parents with that of unrelated parents, whereas case-control studies could compare the rates of first cousins among affected individuals and controls".', 'role': 'assistant'}]