This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
[{'content': 'Cell shape and physical structure is provided by \nSelect and explain. \nA. Cell membrane, B. Microtubules, C. Microflaments, D. Golgi apparatus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Microtubules are the largest cytoskeleton component. Cytoskeleton provides a structural framework for the cell. (REF TEXTBOOK OF MEDICAL PHYSIOLOGY GEETHA N 2 EDITION, PAGE NO - 9)', 'role': 'assistant'}]