Answer:
b. hemocytoblast
Explanation:
Hemocytoblasts are the pluripotent stem cells present in the red bone marrow and have the ability to give rise to all types of cells present in the blood. For example, the formation of red blood cells from hemocytoblast includes myeloid stem cell, proerythroblast, intermediates stages of accumulation of hemoglobin and enucleation and finally the red blood cells. Likewise, hemocytoblast can also from various white blood cells and platelets from different cell pathway.
