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: Pharmacology
Dextran is a good plasma expanders, but disadvantage of : 
Select and explain. 
A. Interference with blood group matching, B. Causes thrombocytopenia, C. Decreases microcirculation, D. Promote roleaux formation
A: Interference with blood group matching
Answer: A: Interference with blood group matching 
Explanation: None