a. What is the operating breakeven point in units for each firm? b. How would you rank these firms in terms of their risk? a. The operating breakeven point for company F is units. (Round to the nearest integer.) The operating breakeven point for company G is units. (Round to the nearest integer.) The operating breakeven point for company H is units. (Round to the nearest integer.) b. How would you rank these firms in terms of their risk? (Select from the drop-down menus.) In order from most risky to least risky, the companies are ranked