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': 'EDTA C is? \nSelect and explain. \nA. EDTA plus cetavlon, B. EDTGA plus cetrimide, C. EDTA plus ciprofloxacin, D. EDTA texapon', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]