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
Folic acid supplementation during lactation period is 
Select and explain. 
A. 150 mg/d, B. 100 mg/d, C. 400 mg/d, D. 450 mg/d
A: 150 mg/d
Answer: A: 150 mg/d 
Explanation: None