2019_Fall Final 1 Which of the following statement is true? A. Activity-based costing is a costing method that is designed to provide managers with product cost information for internal decision-making, B. In activity-based costing, all manufacturing costs must be included in product costs. C. Organization-sustaining activities relate to specific customers and are not tied to any specific products. D. Unit-level activities are performed each time a batch is handled or processed. E. Activity-based costing is best proposed, designed and implemented by the accounting department without requiring the time of busy managers. da to osoby