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
FDA approved locally delivered minocycline for subgingival placement is marketed under trade name 
Select and explain. 
A. periochip, B. atridox, C. arestin, D. elyzol
C: arestin
Answer: C: arestin 
Explanation: None