This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Social & Preventive Medicine
[{'content': 'Relative risk formula(2018) \nSelect and explain. \nA. Incidence of disease among non-exposed divided By Incidence of disease among exposed, B. Incidence of disease among non-exposed minus Incidence of disease among exposed, C. Incidence of disease among exposed divided by Incidence of disease among non-exposed, D. Incidence of disease among exposed minus Incidence of disease among non-exposed', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Estimation of disease risk associated with exposure is obtained by an index known as "Relative Risk" (RR) or \'"risk ratio" , which is defined as the ratio between the incidence of disease among exposed persons and incidence among non-exposed. It is given by the formula: Incidence among exposed/ incidence among non exposed. Ref:- park; pg num :- 81', 'role': 'assistant'}]