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
Calcium requirement above the normal during the first six month of lactation is - 
Select and explain. 
A. 400mg\/day, B. 550mg\/day, C. 600mg\/day, D. 75mg\/day
C: 600mg\/day
Answer: C: 600mg\/day 
Explanation: 600 md/dl calcium is neede for a lactating woman for first 6months.REF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-588 table no.29.