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: Medicine
The following is not true of platelet transfusion - 
Select and explain. 
A. Useful in ITP, B. Used in DIC, C. Effective for 9-10 days, D. Effect decrease with repeated usage
C: Effective for 9-10 days
Answer: C: Effective for 9-10 days 
Explanation: None