Which of the Following Occurs in Intramembranous Ossification

Which of the following occurs in intramembranous ossification?

A) Hyaline cartilage model forms.
B) Periosteum forms a collar around the cartilage.
C) Fibrous connective tissue is converted to bone tissue, which first resembles spongy bone.
D) As the bone enlarges, osteoclasts break down some of the spongy bone and create a marrow cavity.
E) Ossification centers are formed as blood vessels and osteoblasts enter the centers of the epiphyses.