i just need to know the last answer

7. Portfolio risk and return Ariel hoids a $5,000 portfolio that consists of four stocks. Her investment in each stock, as well as each stock's beta, is listed in the following table: Investment $1,750 Stock Andalusian Limited (AL) Tobotics Inc. (TI) Water and Power Co. (WPC) Makissi Corp. (MC) Beta Standard Deviation 1.00 9.00% 1.30 12.00% 1.20 20.00% $1,000 $750 $1,500 0.30 19.50% Suppose all stocks in Ariel's portfolio were equally weighted. Which of these stocks would contribute the least market risk to the portfolio? Makissi Corp Tobotics Inc. Andalusian Limited Water and Power Co. Suppose all stocks in the portfolio were equally weighted. Which of these stocks would have the least amount of stand-alone risk? Tobotics Inc Makissi Corp water and Suppose all stocks in the portfolio were equally weighted. Which of these stocks would have the least amount of stand-alone risk? Toboties Inc Makissi Corp Andalusian Limited Water and Power Co If the risk free rate is 4% and the market risk premium 5,5%, what is Ariel's portfolios bata and required return? Fill in the following tablet Beta Required Return Ariel's portfolio