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
Egg is ideal protein because it has – 
Select and explain. 
A. High cholesterol, B. High protein per 100 gm, C. High biological efficiency and NPU, D. No limiting amino acid
C: High biological efficiency and NPU
Answer: C: High biological efficiency and NPU 
Explanation: Egg is ideal protein because it has high biological efficiency and NPU :

NPU for egg : 100    Fish : 77    Wheat : 51
NPU for meat : 80   Rice : 65    Pulses : 45-50
NPU for milk : 75    Soyabean : 55