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: Ophthalmology
The canal of Schlemm possesses the following anatomic characteristics except: 
Select and explain. 
A. Contains red cells, B. Contains aqueous, C. Lined by endothelium, D. Contains paitions resembling the dural venous sinuses
A: Contains red cells
Answer: A: Contains red cells 
Explanation: Ans. Contains red cells