Hello I have an economics math equation and have provided the question via image. I need help with Discretionary fiscal policy is best defined as:

Discretionary scal policy is best dened as: O a. the deliberate manipulation of the money supply to expand the economy. 0 b. the arbitrary uctuation in tax laws and budget requirements. 0 c. the policy action taken by the Congress to reduce the federal budget decit. Q d. the automatic change in certain scal instruments when real GDP changes. 0 e. the deliberate change in tax laws and government spending to change equilibrium income