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Ariel holds a \$\$,000 portfolio that consists of four stocks. Her investment in each stock, as well as each stock's beta, is listed in the following table: Suppose all stocks in Ariel's portfolio were equally weighted. Which of these stocks would contribute the least market risk to the portfolio? Three Waters co. Mainway Toys Co. Zaxatt Enterprises Perpetualcold fefrigeration Co. Suppose all stocks in the portfolio were equally weighted. Which of these stocks would have the least amount of stand-alone risk? Zaxatti Enterprises Perpetualcold Pefrigeration Co. Mainway Toys Co. Three Waters co. If the risk-free rate is 4% and the market risk premium is 5.5%, what is Ariel's portfolio's beta and required return? Fill in the following table