Answer:
A.
Step-by-step explanation:
What is a lymphocyte? A type of white cell (defensive cell).
What is a T cell? A lymphocyte cell from the immune system.
What is a Macrophage? A phagocyte from the immune system.
What is a Neutrophil? A granulocyte from the immune system.
What is a Platelet? Thrombocyte form the immune system.
What makes a white cell a white cell?
Well, some characteristics of a white cell are that they are produced in the bone marrow, that they have a nuclei, and that they fight invaders and prevent infections.
Hope it helped,
BiologiaMagister