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: Microbiology
[{'content': 'Sporicidal disinfectant is following except \nSelect and explain. \nA. Glutaraldehyde, B. Formaldehyde, C. Ethylene oxide, D. Benzalkonium chloride', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is `d' i.e., Benzalkonium chloride", 'role': 'assistant'}]