Q: Which blood cells serve to defend the body in various ways?


Read this paragraph and choose the correct option from the provided answers:

White blood cells are larger than red blood cells, but there are far fewer of them. Their role is to defend the body in various ways. For example, white blood cells called phagocytes engulf and destroy microorganisms and debris in the blood.

 Choices:

- helper blood cells

- blue blood cells

- red blood cells

- white blood cells


A:
white blood cells