This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and Health, Subject name: Social & Preventive Medicine
Best method to compare protein quality is:(1994) 
Select and explain. 
A. Net protein utilization, B. Biological value, C. Specific dynamic action of protein, D. Presence or absence of essential amino acids
A: Net protein utilization
Answer: A: Net protein utilization 
Explanation: Ans: aRef: Park, 17th ed, p. 414 & 18th ed, p. 440