An investor purchases 200 shares of Merxx on margin. The shares are trading at $40. Initial and maintenance margins are 50 percent and 25 percent. If the investor sells the stock when the price rises to $50 at year-end, the return on the investment would be closest to:（）

A. The short seller must pay all dividends due to the lender of the shorted stock.
B. Stocks can only be shorted in a down market.
C. The lender must also deposit margin money to guarantee the eventual repurchase of the stock.

A. between 0.0 and -0.5, and that between indices of U. S. investment grade bonds is between 0.0 and 0.5.
B. between 0.0 and 0.5, and that between indices of U. S. investment grade bonds is close to 1.0.
C. between 0.0 and 0.5, and that between indices of U. S. investment grade bonds is between 0.25 and 0.75.