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': 'Highest biological value of protein is seen in – \nSelect and explain. \nA. Eggs, B. Fish, C. Soyabean, D. Gram', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Egg protein is considered to be the best food protein by nutritionists.\nNet protein utilization, which combines in a single value, the biological value and digestibility is 100 for egg compared to 80 for meat and 75 for milk.\nEgg protein therefore is used as a reference protein. It is taken as the standard protein, against which the quality of other proteins is compared.\nEgg contains all nutrients except\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 \xa0\nCarbohydrates\nVitamin C', 'role': 'assistant'}]