What is the function of the stromal cell layer in the bone marrow during hematopoiesis?

A To produce hematopoietic growth factors
B To filter the blood and remove pathogens
C To provide a scaffold for hematopoietic stem cell adhesion and proliferation ✓
D To regulate the immune response

Explanation

The stromal cell layer in the bone marrow provides a supportive environment for hematopoietic stem cells, including a scaffold for adhesion and proliferation, as well as producing growth factors and other signals that regulate hematopoiesis.

Source

Guyton and Hall Textbook of Medical Physiology
Hematology Hematology: Hematopoiesis Hematology: Hematopoiesis Medium MEDICAL Confidence: high