Question

Which of the following means that the decision maker has all information needed to make an optimal decision?

Answer 1

Certainty means that the decision maker has all the information needed to make an optimal decision.

This means that he knows the exact nature of the marketing opportunity or problem. For instance, a marketing agency may need to know the demographic characteristics of subscribers to magazines in which it can place a client's advertisements. Certainty means that the agency knows what information it needs and knows where to find the information.

Answer 2

Thank you for asking this interesting question.

It seems you have not provided the options here.

But the answer of your question is “certainty” 

This means that the decision maker has all the information needed to make an optimal decision. This also means that the decision maker  knows the basic thinks about the business and  know about the opportunities as well as problem.So he have the basic information and  can take a optimal decision.