Which of the following statements is true with regard to activity-based costing rates? Select one: O a. ABC is simpler and less expensive to implement than other traditional methods of allocating overhead costs. O b. The premise of ABC is that activities are what cause costs to be incurred. O c. ABC is another way to refer to a multiple departmental rate situation. O d. none of the given answer. Oe. All cost drivers used to determine the rates will be unit-level drivers. Which of the following statements is/are true? Select one: O a. All of the given statements are true O b. When managers intentionally set budgeted costs too high and budgeted revenues too low, they are creating budgetary slack. Oc. In a production budget, beginning inventory in units plus budgeted units to be produced equals unit sales minus targeted ending inventory in units. Od. Production and inventory budgets form the basis for developing the sales budget. e. One disadvantage of participative budgeting is employees' tendency to overestimate of revenues.