10) An investor buys $16,000 worth of a stock priced at $20 per share using 60% initial margin The broker charges 8% on the margin loan and requires a 35% maintenance margin. The stock pays a $.50-per-share dividend in 1 year, and then the stock is sold at $21 per share. What was the investor's rate of return? a) b) c) d) 3.52% 7.17% 12.83% 25.75%