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: Pathology
Which of the following blood vessels will be affected by endothelial cell retraction: 
Select and explain. 
A. Venules, B. Capillaries, C. Arterioles, D. None of the above
A: Venules
Answer: A: Venules 
Explanation: None