An activity-based costing system that is designed for internal decision-making will not conform to generally accepted accounting principles because: a. activity-based costing has not been approved by the United Nation's International Accounting Board. b. under activity-based costing some manufacturing costs (ie, the costs of idle capacity and organization- sustaining costs) will not be assigned to products. c. activity-based costing results in less accurate costs than more traditional costing methods based on direct labore hours or machine-hours. d. under activity-based costing the sum of all product costs does not equal the total costs of the company Time-based activity-based costing does NOT use which of the following types of data inputs? a. Activity data. b. Costs object data. c. Resource data. d. Direct cost data