When Constructing an Economic Model,economists

Multiple Choice

When constructing an economic model,economists:

A) rely mostly on their own value judgments and ignore the far more complex world of facts.
B) always try to duplicate reality by including all available information.
C) use assumptions that are true for the individual but never true for the whole economy.
D) must rely on assumptions for the sake of simplification.
E) are primarily concerned with making realistic assumptions.