This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Mass treatment strategy is for treating - \nSelect and explain. \nA. Plague, B. Filariasis, C. Cholera, D. Diphtheria', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Mass treatment approach is used in the Treatment of ceain diseases such as yaws , pinta , bejel , trachoma and filaria. Reference; Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 48', 'role': 'assistant'}]