The most important task of a manager is to make decisions. Therefore, human decisionmaking process may be considered as a blend of the intelligence, educational background, experience, intuition, judgment, as well as personality and the cultural background of the decision maker. This blend is usually called the profile of the decision maker. Unfortunately, there is no secret formula for a successful manager’s profile. What is more important than the profile of a decision maker is to follow the steps of the scientific decision making.
They are as presented by Simon:
1. Define or identify the problem or the opportunity
2. Built an appropriate representation of the problem, that is, a model
3. Search for best or better feasible solutions to the problem by using the model
4. Choose a superior solution to the problem.

Thereofre, the correct option is D