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: Surgery
A patient is not responding even after undergoing multiple platelet transfusion. Which of the following will be the best treatment for him? 
Select and explain. 
A. Random platelet donor, B. Single platelet donor, C. HLA matched platelet, D. Irradiated platelets
C: HLA matched platelet
Answer: C: HLA matched platelet 
Explanation: None