This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Elimination, Eradication, Surveillance, Subject name: Social & Preventive Medicine
[{'content': 'HIV sentinel surveillance provides data mainly for: \nSelect and explain. \nA. To assess the quality of related services, B. To identify high risk population, C. To estimate disease incidence, D. To monitor disease trends', 'role': 'user'}, {'content': 'Answer: D \nExplanation: HIV Sentinel surveillance: Aim- To monitor trends of HIV infection. Objectives include- Determining level of HIV infection among general population as well as high risk groups To understand trends of HIV epidemic To understand geographical spread of it Estimation of HIV prevalence & disease burden Provide information for prioritization of programme resources & evaluation of its impact', 'role': 'assistant'}]