Activity costing (ABC) is an example of:

Activity-Based Costing (ABC) is a cost allocation technique that assigns costs to products and services based on the resources they consume. ABC provides more accurate cost information by identifying and evaluating activities that drive costs, helping organizations allocate overhead more precisely. This technique helps in better understanding the true cost of production and supports strategic decision-making. It is not part of Generally Accepted Accounting Principles (A), an inventory classification system (B), or an asset cost estimate technique (C).