What is diapedesis?

Explanation:
White blood cells also called leukocytes, roll along the endothelium of blood vessels, stick to it, squeeze out between endothelial cells and leave the bloodstream by the process known as diapedesis. They take part in the body’s immune response.

The immune response of T-cells - Cell-mediated immunity where T-lymphocytes take part in the destruction of toxins, here antibodies do not play any role.

WBCs are synthesized from the pluripotent stem cells present in the bone marrow, based on the presence or absence of granules in the cytoplasm the WBC is of two types - granular and agranular leukocytes.

RBCs are synthesized from the pro-erythroblast cells present in the bone marrow by the process known as erythropoiesis.


Final Answer:
So, The correct option is C.