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': 'True regarding malathion are all of the following except: March 2008 \nSelect and explain. \nA. Used as a spray, B. Can be used as an alternative to DDT, C. Most toxic of all members of the group, D. Belongs to organophosphorous insecticides', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: Most toxic of all members of the group', 'role': 'assistant'}]