Most risk and return models in finance define risk in terms of variance or standard deviation of actual returns around an expected return. Assume that you were looking at the following investments and you can pick only one. If your objective were to minimize risk, which investment would you take? Select one: a. Investment D: Expected Return = 10%, Standard deviation = 15% b. Investment A: Expected Return = 2%, Standard deviation = 0% c. Investment C: Expected Return = 10%, Standard deviation = 10% d. Investment B: Expected Return = 20%, Standard deviation = 25%

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