Answer:
control
Step-by-step explanation:
Control is the group that is out of the test, for example on a drug test, the control group will not use the drug. That is, when testing a specific substance, the control is the name given to the part of the simulation where you ran the indicator test on distilled water.
In other words, the control is characterized by a situation where a certain variable is not being tested, it is a simulation where so variable is in the most normal and pure situation possible.