In a private closed economy where consumption expenditure (C) equals gross domestic product (GDP), investment spending (Ig) equals gross domestic product (GDP), savings (S) equals investment spending (Ig), and there are no unplanned changes in inventories, which of the following statements is true?
A) Government spending is equal to zero.
B) Net exports are negative.
C) There is a trade surplus.
D) Aggregate demand equals aggregate supply.
