Which among the following sites are involved in "undeakers fracture"?

The so called undeaker fracture is caused due to the head falling backward forcibly after death. It usually causes one of interveebral discs (usually around C6 or C7) to tear open and results in the subluxation of the lower cervical spine. Ref: Textbook of Forensic Medicine and Toxicology by Narayan Reddy, Edition 21, Page - 92