Answer:
d. Macrophages are granulocytes that phagocytose pathogens
Explanation:
Macrophages are monocytes. Monocytes are agranulocytes, a type of leucocytes (WBC). They moves out of the blood and goes to the body tissues and reaches to the site of inflammation to clean the debris of neutrophils, debris of pathogens such as virus and bacteria, cell debris after initial neutrophil response. They can also present antigens to unexperienced lymphocytes.
