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': 'All are used in treating spasmodic dysmenorhoea except : \nSelect and explain. \nA. Bromocriptine, B. Ibuprofen, C. Mefanamic acid, D. Norethisterone and Ethinyl estradiol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bromocriptine', 'role': 'assistant'}]