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
Adult non-pregnant female requires, calcium per day - 
Select and explain. 
A. 400 mg, B. 600 mg, C. 800 mg, D. 1000 mg
B: 600 mg
Answer: B: 600 mg 
Explanation: 600 mg/dl calcium is required for a non pregnant adult female.REF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-588. Table no.29