Answer:
A) in any particular year, the level of GDP is determined mainly by the level of aggregate expenditure.
Step-by-step explanation:
The formula for calculating the aggregate expenditure (AE) of an economy is the same used to calculate the gross domestic product:
Aggregate expenditures = consumption + investment + government + net exports (exports - imports)
The main difference between the GDP ans AE is that AE measures the planned consumption, the planned investment, the planned government expenses and the planned net exports.
he equation is: AE = C + I + G + NX. The aggregate expenditure determines the total amount that firms and households plan to spend on goods and services at each level of income.