Where is the lesion affecting control of the bladder in this patient located?

An 18-year-old male patient was thrown from a horse and suffered extensive damage to the back and pelvic region. After 2 weeks of recovery, it is noted that the patient has a spastic neurogenic urinary bladder. Although the patient is unable to initiate micturition, the bladder periodically empties itself. Where is the lesion affecting control of the bladder in this patient located?
(A) cauda equina
(B) spinal cord, above the level of S2
© spinal cord, at the level of S2
(D) spinal cord, at the level of S3
(E) spinal cord, at the level of S4