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': 'Medical treatment of ectopic pregnancy is : \nSelect and explain. \nA. Methotrexate, B. Progesterone, C. Oestrogen, D. Adriamycin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Methotrexate', 'role': 'assistant'}]