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': 'Antihormonal substance used to induce ovulation \nSelect and explain. \nA. Mifepristone, B. Clomiphene citrate, C. Tamoxifen, D. Raloxifen', 'role': 'user'}, {'content': "Answer: B \nExplanation: Shaw's textbook of Gynaecology- 16th edn- pg no- 257. Clomiphene citrate is used for ovulation induction. Dose- 50mg/day startingfrom day 2 to day 6 of the cycle for 5 days.", 'role': 'assistant'}]