Answer:
D. Since iron is required to make hemoglobin and myoglobin, iron deficiency decreases the amount of oxygen in the blood and in the muscles.
Step-by-step explanation:
Anemia, in fact, is a syndrome, which can accompany several diseases. The oxygenation process depends on hemoglobin, which is in the red blood cell, in addition to breathing and circulation itself, and there may be some type of compensation between these components in situations of a more discrete problem. The fact is that a sub-normal amount of hemoglobin reduces the blood's ability to carry oxygen, which activates a series of correction mechanisms.
Myoglobin, in turn, is responsible for maintaining the oxygen supply at the sites.
Both hemoglobin and myoglobin need iron molecules in their structure. Therefore, iron deficiency prevents these proteins from working by decreasing the amount of oxygen in the blood and muscles. As a result, an individual may experience muscle weakness, shortness of breath and dizziness.