Explanation:
The correct option is 'c'. A Hangman's fracture (traumatic spondylolisthesis of the axis) is a bilateral fracture of the pars interarticularis of the C2 vertebra. It is typically caused by a hyperextension and axial loading mechanism. While classically associated with judicial hanging, modern cases most often result from motor vehicle accidents.

Reference: Effendi B, et al. Fractures of the ring of the axis. A classification based on the analysis of 131 cases. J Bone Joint Surg Br. 1981;63-B(3):319-327.