Compact bone is characterized by the presence of

A. Harvesian system with yellow bone marrow

B. Haversian system with red bone marrow

C. Haversian system without bone marrow

D. Haversian system with both red and yellow bone marrow

Compact Bone
It can be found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or Haversian system. Each osteon is composed of concentric rings of calcified matrix called lamellae