What is the unlevered beta (Industry beta range) for Exploration and Production using all the comparable companies and calculating a weighted average of unlevered beta; weights being the proportion of their market values? Corporate tax rate to be considered as 2006 tax rate (Exhibit 1) for Midland Energy Resources up to 2 decimal places XXXX% Select one: O a. 0.50-0.70 O b. 0.90-0.91 O C. 0.80-0.89 O d. None of the options are correct O e. 0.92-1.00