Final answer:
Damage to the spleen reduces the production of granulocytes, which are important for fighting off infections.
Step-by-step explanation:
The correct answer is A) Damage to the spleen reduces the production of granulocytes. The spleen plays a crucial role in the immune system as it filters the blood and removes old or damaged red blood cells.
Additionally, it plays a role in the production and maturation of certain white blood cells, including granulocytes.
Therefore, if the spleen is damaged, it can negatively impact the production of granulocytes, which are important for fighting off infections.