Question

erythrocytes, leukocytes, thrombocytes are also called
red blood cells, white blood cells, and sickle blood cells
white blood cells, platelets, and yellow marrow cells
red blood cells, white blood cells, and platelets

Explanation:

Erythrocytes are red - blood cells, leukocytes are white - blood cells, and thrombocytes are platelets.

Answer:

red blood cells, white blood cells, and platelets