A restrained driver of a car, that struck another car from behind at a low rate of speed, has a bruise to her forehead and complains of tingling in her left leg. She is lying on the side of the road and another EMT has taken manual in-line spinal stabilization. A quick scan of her as you approach indicates that she is in little to no distress. Which one of the following should you do first?

A) Check her breathing and radial pulse.
B) Perform a secondary assessment.
C) Palpate her cervical spine and apply a cervical collar.
D) Administer high-concentration oxygen.

A