Question

which structure is a fibrous tissue that forms the outermost covering of bone?
endosteum
compact bone
periosteum
spongy bone

Explanation:

The periosteum is a fibrous tissue that covers the outer - surface of bone. Endosteum lines the inner surface of bone cavities. Compact and spongy bone are types of bone tissue, not the outer - covering fibrous tissue.

Answer:

C. periosteum