a. An investor buys shares in a public company for $50.00 per share. The maximum amount of money the investor can lose before commissions is: (1 mark) O $50.00 per share Unlimited Cannot be determined None of the above b. An investor buys shares in a public company on 40% margin, paying $50.00 per share. The maximum amount of money the investor can lose before interest and commissions is: (1 mark) $50.00 per share $20.00 per share Unlimited O None of the above c. An investor sells short shares in a public company for $50.00 per share. The maximum amount of money the investor can lose before interest and commissions is: (1 mark) $50.00 per share sold short Unlimited Cannot be determined None of the above d. An investor buys shares in a public company for $50.00 per share, utilizing the maximum available margin of 40%. Assuming the shares increase in value, this investor's return on investment before interest and commission will be: (1 mark) The same as the return on investment earned by an investor who did not buy on margin Double the return on investment earned by an investor who did not buy on margin Cannot be determined None of the above