. On January 1, you tell your broker to sell short 500 shares of Apple Inc. stock at a price of $100 per share. You use $30,000 cash to serve as a margin. (a) (5 points) How high can the stock price go before you get a margin call if the maintenance margin is 50%? (b) Assume that on April 1, a dividend of $4 per share was paid. On May 1, you covered the short sale by buying the stock at a price of $105 per share and returned your borrowed shares. I. (7 points) What is the value of your account on May 1 after returning borrowed shares? II. (3 points) What is your rate of return (%) from this short sale??