Answer:
B. when interest rates increase, aggregate spending decreases
Step-by-step explanation:
Interest rates and aggregate spending have an inverse relationship. An increase in interest rates results in a decrease in aggregate expenditure. Interest refers to the cost of money, while aggregate spending is the total consumption in the economy.
When the cost of money is high, firms and households will stop borrowing, which reduces spending. It means businesses will not expand, and domestic consumption reduces. The net effect is a lower demand for goods and services, resulting in lower aggregate spending.