An
incomplete closure of one or more vertebrae, with no protrusion of the
spinal cord or the membranes covering the brain and spinal cord, called
the meninges.<span>
</span>
Low-key in my opinion ill go with D.
No I don't think so .. But I could be wrong hope this helps !:-)
Knee raises, squats, all those types of thing's have to do with track.
Hope this Help's..
P.s i Tryed:')