I think the answer to that question would have to be a because its the most reasonable
Answer:
The central nervous system is made up of the brain and the spinal cord. The brain communicates with the rest of the body through the spinal cord, which runs from the base of the brain all the way down the back. ... Messages travel from the brain into the spinal cord and out to the body's nerves to tell the body what to do.
Explanation:
The answer is on socratic search it in that data base :)
B.or a cause i was in nursing for a year but i left sooo i hope i helped ~chelsea xoxo
Different individuals have different levels of physical fitness.