A single anterior spinal artery supplies the anterior 2/3rds of the spinal cord.

a) The anterior spinal cord is primarily responsible for sensation
b) The anterior spinal artery supplies the posterior 1/3rd of the spinal cord
c) The posterior spinal arteries supply the anterior 2/3rds of the spinal cord
d) The anterior spinal artery supplies the anterior 2/3rds of the spinal cord