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
RDA of zinc in a child ? 
Select and explain. 
A. 10 mg, B. 20 mg, C. 6-8 mg, D. 4-5 mg
C: 6-8 mg
Answer: C: 6-8 mg 
Explanation: Ans. is 'c' i.e., 6-8 mg