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 treatment of infeility, except : \nSelect and explain. \nA. Luteinizng hormone (LH), B. Prolactin, C. GnRH, D. Clomiphene', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Prolactin', 'role': 'assistant'}]