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': 'Treatment of choice in a young patient with primary dysmenorrhea is : \nSelect and explain. \nA. Presacral neurectomy, B. Dilatation, C. Hysterectomy, D. Symptomatic', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Symptomatic', 'role': 'assistant'}]