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
Flourosis develops when water fluoride content is above 15mg/lit but it has been observed after different studies that this flourosis can also develop in people whose staple diet is 
Select and explain. 
A. Wheat, B. Rice, C. Jowar, D. Bajra
C: Jowar
Answer: C: Jowar 
Explanation: None