The process of RBCs clumping together in a mass is known as:

A) agglutination.
B) hemolysis.
C) hemostasis.
D) hematopoiesis.

Agglutination

The clumping together of particles or cells, often observed in reactions between antibodies and antigens.

Hemolysis

The rupture of red blood cells, leading to the release of hemoglobin into the blood plasma.

Hemostasis

Hemostasis is the process by which the body stops bleeding through blood clot formation at the site of a wound.