Emma holds a $7,500 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 Emma's portfolio were equally welghted. Which of these stocks would contribute the least market risk to the portfolio? Zaxatti Enterprises Mainway Toys Co. Andalusian Limited Western Gas \& Electric 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 Western Gas \& Electric Co. Mainway Toys Co. Andalusian Limited If the risk-free rate is 7% and the market risk premium is 8.5%, what is Emma's portfolio's beta and required return? Fill in the following table