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
Daily dose of Fe for adolescent female is: 
Select and explain. 
A. 1.8 mg/d, B. 2.4 mg/d, C. 3.4 mg/d, D. 4.0 mg/d
B: 2.4 mg/d
Answer: B: 2.4 mg/d 
Explanation: 2.4 mg/d