The lucas critique indicates that
a. advocates of discretionary policies' criticisms of rational expectations models are well-founded.
b. advocates of discretionary policies' criticisms of rational expectations models are not well-founded.
c. expectations are important in determining the outcome of a discretionary policy.
d. expectations are not important in determining the outcome of a discretionary policy.

C. expectations are important in determining the outcome of a discretionary policy.

Explanation:

Lucas Critique -

Robert Lucas was a famous economist and was awarded the 1995 Nobel Prize in the field of  economics .

according to the Lucas critique ,

The consciousness of trying to predict the effects of the change in the economic policy completely on the basis of  observations in the historical data .

It helps to understand that the expectations are necessary to determine the outcome of any discretionary  policy .

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