This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'Fever, leukopenia, DIC, and hypotension caused by members of the Enterobacteriaceae family are most strongly associated with which of the following structures? \nSelect and explain. \nA. H antigens, B. K antigens, C. Lipid A, D. Polysaccharides', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The lipopolysaccharide (LPS) of gram-negative cell walls consists of a complex lipid, lipid A, to which is attached a polysaccharide made up of a core and a terminal series of repeat units.', 'role': 'assistant'}]