All of the Following Are Assumptions of the Classical Decision-Making

All of the following are assumptions of the classical decision-making model except:

A) all alternatives and the potential results of each are calculated
B) the decision maker operates to accomplish goals that are known and agreed on
C) the decision maker is rational and uses logic to assign values, order preferences, evaluate alternatives, and make the decision that will maximise the attainment of organisational goals
D) decision goals often are vague, conflicting, and lack consensus among managers
E) criteria for evaluating alternatives are known