A 19-Year-Old Boy Was Suspected of Having Leukemia

A 19-year-old boy was suspected of having leukemia. It was decided to confirm the diagnosis by performing a bone marrow biopsy.
-The following statements concerning this procedure are correct except which?

A) The biopsy was taken from the lower end of the tibia.
B) Red bone marrow specimens can be obtained from the sternum or the iliac crests.
C) At birth, the marrow of all bones of the body is red and hematopoietic.
D) The blood-forming activity of bone marrow in many long bones gradually lessens with age, and the red marrow is gradually replaced by yellow marrow.