This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Medicine
[{'content': 'For assessment cardiovascular dfs MONICA project is used What is it associated with \nSelect and explain. \nA. Risk factor intervention trials for CVD, B. Oslow diet smoking intervention study, C. Monitoring of trends & determinants in cardiovascular disease, D. Lipid research clinics study', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ref : harrisons 21st ed', 'role': 'assistant'}]