PLZ solve it to me

7. Now, Mr. Ahmed is also considering diversifying his investment. (10 marks) Company Expected returns R Sohar Fisheries 10 Sohar Poultry 15 Sohar Milk Products 20 Standard Deviations o 7 9 11 A. Calculate the expected returns for the suggested portfolio. (4 marks) Company Portfolio 1 Sohar Fisheries 50% Sohar Poultry 30% Sohar Milk Products 20% Portfolio 2 40% 20% 40% B. Calculate the Coefficient of variation of shares of Sohar Fisheries, Sohar Poultry and Sohar Milk Products. (3 marks) C. Which company can Mr. Ahmed invest based on coefficient of variation of shares? justify your recommendation with relevant academic literature related to Portfolio Theory and coefficient of variation of shares by appropriately citing and referencing the literature sources