Which of the following bones contain red bone marrow in children but not in adults?

Question

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In children, red bone marrow is found in the medullary cavities of long bones, including the radius. However, as individuals age into adulthood, much of this red marrow is replaced by yellow marrow, which is primarily fatty tissue. The other bones listed (pelvic bones, sternum, clavicle, and vertebrae) continue to contain red bone marrow into adulthood, as they are sites of ongoing hematopoiesis (blood cell production).

Which of the Following Bones Contain Red Bone Marrow in Children