This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'Masseter muscle is a powerful muscle because of \nSelect and explain. \nA. Bipennate arrangement of fibres, B. Multipennate arrangement of fibres, C. It has multiple tendinous septa, D. Its attachment to bone is unique', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]