Jane Lee opens a brokerage account, and purchases 300 shares of ABC at $40 per share. She borrows $4000 from her broker to help pay for the purchase. a. What is the margin on Jane’s account when she first purchases the stock? b. If the share price falls to $30 what is the remaining margin on her account? c. What is the return on Jane’s investment? How does it compare to the return on the stock?