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
Patient with genetic susceptibility of which of the following will have increased risk of periodontitis 
Select and explain. 
A. IL 1, B. IL 2, C. IL 6, D. IL 8
A: IL 1
Answer: A: IL 1 
Explanation: None