Which best describes a difference between laser light and regular light?
a. laser light is less concentrated.
b. laser light has a beam that spreads out.
c. laser light is made of one specific color.
d. laser light pumps out light particles one at a time.

The answer is C

Explanation:

Laser light is extremely concentrated, making A false.

Knowing this, laser light does not spread out like a regular flashlight would, making option B false

I'm not sure about D but I am certain I have never seen a multi colored laser, making C the correct answer.

 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.