The central nervous system is made up of the brain and spinal cord. The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body

What is the question

Explanation:

 Option C

Explanation:

Laser lights are generally made of one specific color. It can be red, blue, yellow et cetera. They are generally concentrated and some of them have penetrating properties that is used in the field of medical sciences.

Normal lights are not concentrated and can be a mixture of colors. They do not have penetrating properties. They have more brightness as compared to the laser.