Final answer:
The correct answer to the question is that only statement III is correct, stating that ABC systems can eliminate cost distortions through cause-and-effect cost drivers.
Step-by-step explanation:
The statement III only is correct, which means that Activity-Based Costing (ABC) systems can eliminate cost distortions because they develop cost drivers with a cause-and-effect relationship with the activities performed. The other statements provided are incorrect:
- Statement I is incorrect because rather than being a refinement of ABC systems, departmental costing is less detailed and often precedes the adoption of ABC systems.
- Statement II is incorrect because ABC systems are also useful outside manufacturing, including in merchandising and service industries.