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 are true of haemorrhoids except - 
Select and explain. 
A. They are arteriolar dilatations, B. They are common causes of painless bleeding, C. They cannot be per rectally palpated, D. They can be banded
A: They are arteriolar dilatations
Answer: A: They are arteriolar dilatations 
Explanation: None