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': 'Cell motility is due to: \nSelect and explain. \nA. Actin polymerization, B. Myosin polymerization, C. Both, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Actin polymerization helps in cell motility Actin and myosin are microfilament They play a role in muscle contraction Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:8,9,14', 'role': 'assistant'}]