This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of menstruation, Subject name: Gynaecology & Obstetrics
[{'content': 'Danazol is useful in the treatment of all except \nSelect and explain. \nA. Hirsutism, B. Endometriosis, C. DUB, D. Leiomyoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Uses of danazol: Endometriosis Abnormal uterine bleeding Cyclical mastalgia Fibrocystic disease of breast Gynecomastia Improves libido in menopausal women Improves spermatogenesis in male infeility Ref: Shaw Gynecology 17 e pg 192.', 'role': 'assistant'}]