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
Recommended Dietary allowance in pregnancy are 
Select and explain. 
A. +100-300 cal, B. 30 mg Iron, C. 4 mg folic acid, D. 2500 mg Mg
B: 30 mg Iron
Answer: B: 30 mg Iron 
Explanation: Ans. is b i.e. 30 mg Iron