Answer:
The correct answer would be erythrocytes or red blood cells.
Erythrocytes also called red blood cells are the component of blood which are responsible for delivering oxygen to the cells and removing carbon dioxide produced in the cells.
These cells contain hemoglobin which can bind to oxygen and carbon dioxide in a reversible manner.
Erythrocytes have an average lifespan of 120 days. They are created in the bone marrow of an organism and are broken down in the spleen.