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
[{'content': 'Gross debridement, lubrication, microbial destruction and tissue dissolution are done by this irrigating solution \nSelect and explain. \nA. Sodium hypochlorite, B. Normal saline, C. RC prep, D. Hydrogen peroxide', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]