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
Iron requirment in a normal mensturating adult female 
Select and explain. 
A. 15 mg/day, B. 20 mg/day, C. 30 mg/day, D. 35 mg/day
B: 20 mg/day
Answer: B: 20 mg/day 
Explanation: Ans. is 'b' i.e., 20 mg/day