This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'The number of deaths prevented as a result of paicular health programme is best evaluated by: \nSelect and explain. \nA. Cost accounting, B. Cost benefit analysis, C. Cost effective analysis, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cost effective analysis evaluates the benefits of a paicular health programme in terms of results achieved, like number of lives saved or number of days free from disease. Ref: Park 22nd edition pg: 814.', 'role': 'assistant'}]