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: Social & Preventive Medicine
[{'content': 'Egg is ideal protein because it has – \nSelect and explain. \nA. High cholesterol, B. High protein per 100 gm, C. High biological efficiency and NPU, D. No limiting amino acid', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Egg is ideal protein because it has high biological efficiency and NPU :\n\nNPU for egg : 100\xa0\xa0 \xa0Fish : 77\xa0 \xa0 Wheat : 51\nNPU for meat : 80\xa0\xa0\xa0Rice : 65\xa0\xa0\xa0\xa0Pulses : 45-50\nNPU for milk : 75\xa0\xa0\xa0\xa0Soyabean : 55', 'role': 'assistant'}]