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: Dental
Which of the following is most likely side effect of fresh autogenous iliac crest transplant in managing an infra bony pocket? 
Select and explain. 
A. Infection, B. Arthus reaction, C. Root resorption, D. Auto erythrocyte sensitivity
C: Root resorption
Answer: C: Root resorption 
Explanation: None