Answer:
A. Erythrocytes
Explanation:
Erythrocytes are also called red blood cells oor RBCs
More information:
are anucleate, biconcave cells, filled with hemoglobin, that transport oxygen and carbon dioxide between the lungs and tissues. They are produced in the red bone marrow by a process called erythropoiesis. During this process, stem cell derived erythroid precursors undergo a series of morphological changes to become mature erythrocytes.
These mature RBCs are released into the bloodstream, where they survive between 100 to 120 days. As you can see, erythrocytes describe the state of your health for the past 3 months, so they can’t be fooled easily! This is the basis for the glycated hemoglobin (HbA1c) test performed by diabetics every 3 months to check their blood glucose levels. After 120 days, old RBCs are recycled by the macrophages of the spleen, liver, bone marrow and lymph nodes (reticuloendothelial system).
