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': 'The nitrogen content in 50 gm of a typical dietary protein is most likely to be \nSelect and explain. \nA. 5 gm, B. 8 gm, C. 10 gm, D. 16 gm', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]