Bliss Corporation runs a simple linear regression that yields a r-squared value of 0.85362. The company adds another independent variable for a multiple regression and the adjusted r-squared is 0.89455. The company should O never add more than one variable because the regression analysis can only be run with one independent variable. I use the analysis with the additional variable because it improved the model. O add as many variables as they want because more variables are always better in regression analysis. O remove the additional variable because the adjusted r-squared value goes up.