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: Social & Preventive Medicine
[{'content': 'Savlon contains - \nSelect and explain. \nA. Cetrimide + Chlorhexidine, B. Cetrimide + Chlorhexidine + butyl alcohol, C. Cetrimide + butyl alcohol, D. Cetrimide + Cetavlon', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e. Cetrimide + chlorhexidine o Savlon contains - Chlorhexidine gluconate (hibitane) + Cetrimide (cetavlon) in various percentages.", 'role': 'assistant'}]