Sort in descending order the four following companies with the characteristics as given below (rate of return, risk, the share in the portfolio of the investor) according to their attractiveness (separately) for a rational investor (from the best to the worse). A(5%; 4.5%; 0.4); B(17%; 15%; 0.3); C(7%; 6%; -0.2); D(22%; 25%; WD). Wybierz jedn odpowied: a. D, A, B, C b. A, C, B, D X c. A, B, D, C d. C, B, A, D