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': 'Recruitment of follicles is caused by \nSelect and explain. \nA. LH, B. FSH, C. Inhibin β, D. GnRH', 'role': 'user'}, {'content': 'Answer: B \nExplanation: FSH is responsible for recruitment of follicles.', 'role': 'assistant'}]