please answer 3 and 4

3) The decision by Elon Musk to take Twitter private means the company will de-list from the New York Stock Exchange and no longer trade publicly as of November 8, 2022. Christine had owned Twitter shares and is looking to calculate her return on her investment prior to Elon Musk's takeover. She invested in Twitter shares when they were trading at \$47 US/share just a year ago. She was quite happy with her investment until Elon Musk purchased the company. As of November 8,2022 , the shares were worth $54.20 US/share and no longer trade after that date. Twitter shares have never paid dividends. What is Christine's return during this holding period of one year? a) 15.32% b) 22.14% c) 12.62% d) 11.12% e) 18.20% 4) Rachel required a mortgage for the purchase of her home. The bank where she obtained the mortgage also sold her mortgage life insurance. When she pays down the principal on her mortgage, what happens to her coverage under her mortgage life insurance? I. If Rachel dies, the amount of her mortgage life insurance will cease, and the mortgage will be paid off. II. The bank is protected should Rachel default on her mortgage.- III. The amount of her mortgage life insurance is linked to the declining balance of her mortgage and will go down over time. IV. The amount of her mortgage life insurance is linked to the declining balance of her mortgage and will cease once the mortgage is fully paid. V. The amount of her mortgage life insurance will not change over the period of her mortgage. VI. The amount of her mortgage life insurance is linked to her mortgage and will steadily increase over time. a) I, II, IV and VI b) II, III and V ' c) I,III and IV d) I and It e) I and Vle