The correct option is D All of the above
Marophage is a large phagocytic cell found in stationary form in the areolar tissues or as a mobile white blood cell, especially at sites of infection. A macrophage has the ability to locate and 'eat' particles, such as bacteria, viruses, fungi, and parasites. Macrophages are born from white blood cells called monocytes, which are produced by stem cells in our bone marrow.