Answer:
C , I , G , NX
Step-by-step explanation:
The components of nation's demand for goods & services is reflected in Aggregate Demand . AD is the total value of goods & services all the consumers are planning to buy during a period.
AD denotes consumption components by 4 sectors of an Economy : Households, Firms, Government , Rest of World .
All 4 sectors form components of AD = Consumption Expenditure, Investment, Government Expenditure, Net Exports (Exports - Imports) by the 4 above sectors respectively.