(Click on the following icon in order to copy its contents into a spreadsheet.) You are examining a portfolio consisting of three stocks. Using the data in the table a. Compute the annual returns for a portfolio with 25% invested in North Air, 25\% invested in West Air, and 50% invested in Tex Oil. b. What is the lowest annual return for your portfolio in part (a)? How does it compare with the lowest annual return of the individual stocks or portfolios in the table above