Question 2 - Investing on Margin and Limit Orders (12 marks). Question 2.1 (9 marks). Jin buys 100 shares of a stock at $50 per share in his margin account. Refer to the chart below to answer the questions. (Assume that he incurs no additional costs.) Margin Required on Long Positions A) What is Jin's margin requirement in dollars? B) What is Jin's return on investment if the stock price rises to $60 per share and he sells his shares? C) If the stock price decreases to $40 and Jin decides to sell the stock, what is his return on investment? Question 2.2 (3 marks). A year ago, Rebecca purchased 100 shares of Havad stock for $25 per share. Yesterday, she placed a limit order to sell her stock at a price of $30 per share before the market opened. The stock's price opened at \$29 and slowly increased to $32 in the middle of the day, before declining to $28 by the end of the day. The stock did not pay any dividends over the period in which Rebecca held it. What was Rebecca's return on her investment