I'll give 50 points to the right answer! Which of the following would be added to the gross domestic product of the United States?
A. $25 million in garage sale purchase (no)
B. $1.2 trillion in interest earned on savings accounts
C. $800 million increase in business inventories
D. $400 billion in stimulus checks from the federal government
E. $2 billion worth of steel sold to American auto manufacturers (no)