Which of the Following Can Be Described as Involving Direct

Which of the following can be described as involving direct finance?

A) A corporation's stock is traded in an over-the-counter market.
B) People buy shares in a mutual fund.
C) A pension fund manager buys commercial paper in the secondary market.
D) An insurance company buys shares of common stock in the over-the-counter markets.
E) None of the above.