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
Rice is poor in all except 
Select and explain. 
A. Calcium, B. Iron, C. Vitamin A, D, C, D. Lysine
D: Lysine
Answer: D: Lysine 
Explanation: Rice is a poor source of Thiamine, Calcium, Iron and Vitamins A, D, C Protein content of rice varies from 6-9% Rice proteins are better than other cereal proteins as dry rice is richer in lysine Rice is staple food of >50% population globally Ref: Park 25th edition Pgno : 665