A. Is the corrects answer
Iron,
Iron is a part of hemoglobin, a protein that transports oxygen from the lungs to the tissues. It helps provide oxygen to muscles. Iron is important for cell growth, development, and normal body functions. Iron also helps the body make some hormones and connective tissue
2000 to maintain current weight.
1500 to lose one pound per week.
I hope this helps! :)
<span>Andrew is a wrestler and needs to stay at a consistent weight. In order to do so, he follows the dietary recommendations of a dietician carefully and always maintains a balanced diet.
</span>