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: Physiology
All are true regarding capillaries except: 
Select and explain. 
A. Have large total cross-sectional area, B. Contain larger quantity of blood than veins, C. Site of gaseous exchange, D. Lined by endothelium
B: Contain larger quantity of blood than veins
Answer: B: Contain larger quantity of blood than veins 
Explanation: B i.e. Contains larger quantities of blood than veins