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: Surgery
[{'content': 'The following is ideal for the treatment with injection of sclerosing agents: \nSelect and explain. \nA. External hemorrhoids, B. Internal hemorrhoids, C. Prolapsed hemorrhoids, D. Strangulated hemorrhoids', 'role': 'user'}, {'content': "Answer: B \nExplanation: Injection sclerotherapy is ideal for first degree internal haemorrhoids which bleed. Early second degree internal haemorrhoids may also be treated but a propoion relapses. Ref: Bailey and Love's Sho Practice of Surgery, 24th Edition, Page 1258", 'role': 'assistant'}]