This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'The following decreases fluidity of the membrane: \nSelect and explain. \nA. Stearic acid, B. Carbohydrates, C. Linoleic acid, D. Cholesterol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Saturated fatty acids decrease membrane fluidity Eg: stearic acid, palmitic acid are major', 'role': 'assistant'}]