This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of the Anal Canal, Subject name: Surgery
Five days self Limiting Rectal painful bleeding- 
Select and explain. 
A. Proctalgia fugax, B. Internal hemorrhoides, C. External hemorhoides, D. Thrombosed external haemorrhoids
D: Thrombosed external haemorrhoids
Answer: D: Thrombosed external haemorrhoids 
Explanation: Ans. is 'd' i.e.. Thrombosed external hemorrhoids