I'm not 100% sure but I think it's a. Hope that helps.
bone marrow <span>contains hematopoietic stem cells, which give rise to the three classes of blood cells that are found in the circulation: white blood cells (leukocytes), red blood cells (erythrocytes), and platelets (thrombocytes)</span>
Type 2 diabetes is usually initially treated by following a healthy diet, losing weight if you are overweight and having regular physical activity. If lifestyle advice does not control your blood sugar (glucose) levels then medicines are used to help lower your blood glucose levels.