Answer:
The correct answer is letter "D": the unit product costs of high volume products typically decrease and the unit product costs of low volume products typically increase.
Explanation:
Activity-Based Costing is a managerial accounting method that assigns certain indirect costs to the products incurring the bulk of those costs. Activity-Based Costing is primarily used in the manufacturing sector to make a better calculation of the real cost of production per unit. Unit product costs of high-volume products typically decrease and unit product costs typically increase with low-volume products after adopting the activity-based costing system.