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: Gynaecology & Obstetrics
[{'content': 'To avoid contraception DMPA Is given : \nSelect and explain. \nA. Monthly, B. 3 Monthly, C. 6 Monthl, D. Yearly', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is b i.e. 3 monthly', 'role': 'assistant'}]