Answer:
D) consumer spending
Explanation:
The aggregate demand is the total of all goods and services that consumers are willing and able to buy in the economy in a given period. It is the demand for all goods and services in the entire country per period. Price variation usually causes movements along the demand curve.
Other factors that influence governments, firms, and household expenditures cause the aggregate demand curve to shift. A change in consumer spending will reduce the number of goods demanded. The aggregate demand will shift inwards.