Diversification refers to the a. reduction of the firm-specific risk of an individual investment b. reduction of the systematic risk of an individual investment, which is c. reduction of the systematic risk of an individual investment, which is the d. reduction of the firm-specific risk of an individual investment, which is upur e. reduction of the firm-specific risk of an individual investment, which is mense Moving to another question will save this response. MacBc 11 12 13 14 15 16 17 18 190 20 21 22 ent, which is measured by its beta coefficient, by combining it with other investicients in portfolio - which is measured by the standard deviation of its returns, by combining with other innements in a periode which is measured by its beta coefficient, by combining it with other investments in a portiolo ht, which is measured by its beta coefficient, by combining it with other investments in a portfolio at, which is measured by the standard deviation of its returns, by combining it with other investments in a portfolio MacBook Pro of 3 R E