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': 'maximum fluidity of the cell membrane is due to ? \nSelect and explain. \nA. linolenic acid, B. linoleic acid, C. palmitic acid, D. arachadonic acid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cholesterol * Increase in cholesterol conc. - less fluid on outer surface, more fluid on inner surface Effect of cholesterol on fluidity is different with different temperature. At temperature below Tm - cholesterol increases fluidity At temperature above Tm - cholesterol decreases fluidity ref : guyton and hall', 'role': 'assistant'}]