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
The following is ideal for the treatment with injection of sclerosing agents: 
Select and explain. 
A. External hemorrhoids, B. Internal hemorrhoids, C. Prolapsed hemorrhoids, D. Strangulated hemorrhoids
B: Internal hemorrhoids
Answer: B: Internal hemorrhoids 
Explanation: 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