please answer all.

11. Most of the decisions determining the level of fixed overhead costs to be incurred will be made A. by the middle of a budget period B. on a day-to-day ongoing basis c. by the end of a budget period D. at the start of a budget period 12. Activity-based costing is most likely to yield benefits for companies A. In a monopolistic market B. with complex product design processes that vary significantly from product to product c. with operations that remain fairly consistent across product lines D. having nominal percentage of indirect costs