Question The role of the osteoblastic stem cell niche in the bone marrow is thought to be to:

Question a Option. protect hematopoietic precursor cells from the lytic action of osteoclasts

b Option. provide nourishment (oxygen, nutrients) to developing precursor cells

c Option. regulate the quiescent state of stem cells blocking differentiation-inducing signals

d Option. produce cytoadhesion molecules important for homing to the marrow