Tina Falls While Climbing a Tree and Lands on Her

Tina falls while climbing a tree and lands on her back. Her frightened parents take her to the emergency room, where she is examined. Her knee- jerk reflex is normal and she exhibits a plantar reflex negative Babinski reflex) . These results suggest that

A) Tina has a spinal injury in the lumbar region.
B) Tina has injured one of her ascending nerve tracts.
C) Tina has a spinal injury in the cervical region.
D) Tina suffered no damage to her spinal cord.
E) Tina has injured one of her descending nerve tracts.