An investment banker has recommended a $100,000 portfolio containing assets B, D, and F. $20,000 will be invested in asset B, with a beta of 2; $50,000 will be invested in asset D, with a beta of 3; and $30,000 will be invested in asset F, with a beta of 1. The beta of the portfolio is ______. Select one: a. 3.1 b. 3.4 c. 2.3 d. 2.2

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