Which of the Following Does Not Constitute an Act of "Investment

Multiple Choice

Which of the following does not constitute an act of "investment" as economists use the term?

A) The city council authorizes the construction of a new fire station.
B) A retiree buys 50 shares of stock at $10 a share and then sells the stock at a profit for $20 a share.
C) An accountant attends a seminar on changes in the federal tax code.
D) A department store increases its inventory of football jerseys before the Super Bowl.