To substantiate the diversification benefit of the portfolio that you identified in Part (a), your mentor asks you to calculate the coefficient of variation (CV) of all possible two-asset portfolios where you invest the money equally between the two companies in the portfolio. He gives you this table to complete. P(1,2) P(1,3) P(1,4) P(2,3) P(2,4) P(3,4) E(R) SD Coefficient of variation (CV) Note: P(1,2) means a portfolio comprising of Company 1 and Company 2 where half of the money is invested in Company 1 and the other half in Company 2 and so on. Does the portfolio that you choose in Part (a) offer the best risk-return trade-off as indicated by the CV? (8 marks) You just started your internship at Platinum Asset Management. Your mentor provides you with the below information regarding the expected returns (E(R)), standard deviations per annum (SD) and correlation coefficients of four company stocks that he has been following. E(R) SD Company 1 Company 2 Company 3 Company 4 8% 9.60% 5.40% 30% 8% 45% 10% 12% p(1,2) p(1,3) Correlation Coefficient p(1,4) 0.9 p(2,3) p(2.4) 0.64 0(3,4) 0.25 Where in option (a) Company 3 and 4 where selected