This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
[{'content': 'Which of the following is an impoant disinfectant on account of effectively destroying gram positive and gram negative bacteria, viruses and even spores at low pH levels? \nSelect and explain. \nA. Phenol, B. Alcohol, C. Chlorine, D. Hexachlorophene', 'role': 'user'}, {'content': "Answer: C \nExplanation: Chlorine is used commonly as hypochlorites chlorine and hypochlorite are markedly bactericidal. They have a wide spectrum of action against viruses. The organic chloramines are used as antiseptics for dressing wounds REF:Ananthanarayan & Panicker's Textbook of Microbiology 9th edition pg no:35", 'role': 'assistant'}]