Question

what is a control group? a group that does not receive the experimental treatment a group that is measured or observed a group that is manipulated or changed to study its effect a factor that is kept the same in an investigation

Explanation:

In an experiment, a control group serves as a baseline. It does not receive the experimental treatment being tested, allowing researchers to compare results and determine the treatment's effect.

Answer:

A. A group that does not receive the experimental treatment