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
Steroids are used in transplantation - 
Select and explain. 
A. To prevent graft rejection, B. To prevent infection, C. To speed up recovery, D. To enhance immunity
A: To prevent graft rejection
Answer: A: To prevent graft rejection 
Explanation: Ans. is 'a' i.e., To prevent graft rejection