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': 'FSH rise in menopause is attributed to \nSelect and explain. \nA. Diminished oestradiol feedback, B. Decreased ovarian inhibin secretion, C. Decreased GnRH frequency, D. Increased AMH concentration', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Increased FSH levels reflect the reduced capability of aging follicles to secrete inhibin.', 'role': 'assistant'}]