单选题根据下面材料，回答题.


The classical model of decision analysis includes all EXCEPT

A．evaluation of a problem.
B．establishment of clear goals to be reached by the decision.
C．action undertaken in order to discover more information about a problem.
D．comparison of the probable effects of different solutions to a problem.

A．contradictory.
B．irrational.
C．insightful.
D．vague.

A．speed up the creation of a solution to a problem.
B．identify a problem.
C．specify clear goals.
D．evaluate possible solutions to a problem.