Answer:
The correct answer is option D.
Step-by-step explanation:
Expansionary fiscal policy is used to boost economic activities. It is used in case of a recession in the economy. The main tools of expansionary fiscal policy are an increase in government spending and a decrease in taxes.
Both of these will cause an increase in disposable income. This will further lead to an increase in the aggregate demand, causing a rightward shift in the aggregate demand curve.