Final answer:
A certain environment is a decision-making environment in which you have complete information on possible alternatives and their consequences.
Step-by-step explanation:
The decision-making environment in which you have complete information on possible alternatives and their consequences is called a certain environment.
In a certain environment, there is a high degree of certainty and predictability because all the information needed to make a decision is available. This means that you know the outcomes or consequences of each alternative with a high level of confidence.
For example, if you are choosing between two investment options and you have complete information about their potential returns and risks, you are operating in a certain environment.