All of the Following Occur During Endochondral Ossification EXCEPT

All of the following occur during endochondral ossification EXCEPT:

A) Chondrocytes in the cartilage model enlarge, then die.
B) The cartilage is calcified.
C) A medullary cavity is formed as the osteoblasts remove bone and calcified cartilage.
D) A primary ossification center forms in the center of the diaphysis as blood vessels and osteoblasts invade the calcified cartilage.
E) The presence of blood vessels in the outer surface of the future bone causes some of the unspecified connective tissue cells on the surface to become osteoblasts.