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: Ans. is 'a' i.e., Egg Egg protein is considered to be the best food protein by nutritionists. Net 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. Egg protein therefore is used as a reference protein. It is taken as the standard protein, against which the quality of other proteins is compared.", 'role': 'assistant'}]