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: Physiology
[{'content': 'The contribution of noncontractile muscle elements to total tension \nSelect and explain. \nA. A, B. E, C. C, D. B', 'role': 'user'}, {'content': 'Answer: B \nExplanation: “Active” tension is maximal at normal physiological muscle lengths. At point E, there is optimal overlap between actin and myosin filaments to support maximal crossbridge formation and tension development is maximum.', 'role': 'assistant'}]