I believe the answer is B., Hopefully I'm correct!
Answer:
The cardiovascular system helps maintain homeostasis by continually supplying the central nervous system--the brain and spinal cord--with oxygen and glucose. Brain cells start dying after just one minute without oxygen. The brain is the control center for all of the body's homeostatic processes.
<span>The direction the nerve impulse travels relative to the central nervous system.
I hope this helps!</span>
You are likely to see a connotation used in both advertisement and also some university lectures. If only one answer is permitted, B is the best answer.
