You are shown an image of a cross section of a bone. You decide it is likely a flat bone based on the structure. Without seeing the overall shape of the bone, how could you tell?

• A. You see yellow marrow in the spaces within the bone.
• B. There is no spongy bone present, only compact bone.
• C. You see a long thin sandwich of compact and spongy bone.
• D. The layer of spongy bone is at least twice the thickness of the compact bone.