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': "DOT's indicates \nSelect and explain. \nA. Short term treatment under supervision, B. Short term treatment without, C. Long term treatment with supervision, D. Long tenn treatment with supervision", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]