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: Biochemistry
[{'content': 'Total ATP generated per turn of TCA cycle is? \nSelect and explain. \nA. 7.5, B. 10, C. 15, D. 20', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]