The Nervous System Is Defined As

The nervous system is defined as:

A) a complex network of cells that carries information to and from all parts of the body.
B) a network of cells that regulates glands,internal organs,blood vessels,pupil dilation,digestion,and blood pressure.
C) all nerves and neurons that are not contained in the brain and spinal cord but that run throughout the body itself.
D) a pathway connecting the brain to the organs and muscles.