Spinal cord shock caused by spinal trauma is due to （ ）

A、Spinal cord nerve cells are subject to shock, resulting in temporary functional inhibition and conduction disturbances
B、Fractures penetrate the spinal cord
C、Compression of the spinal cord due to hematoma, etc.
D、Spinal cord nerve cells destroyed after trauma
E、Disruption of the superior and descending nerve tracts of the spinal cord