Answer: Hip Bone
Step-by-step explanation:
Hematopoiesis is a semi-solid tissue which is found in the cancellous or spongy portions of the bones.
In adult human, bone marrow is found in many bones of the body such as in the sternum, ribs and bones of pelvis. On an average the 4 % of the whole body mass is bone marrow.
In case of any blood forming tissue problem the tissue sample are usually extracted from the pelvic bone because this is one of the actively participating regions in the body of adult.
hence, the correct answer is hip bone.