✅ Correct Answer: Activity-Based Costing (ABC)
Explanation:
ABC allocates indirect and overhead costs to specific products, services, or customers based on activities, giving a clearer picture of profitability.
Why the other options are wrong:
❌ Marginal costing – measures costs of producing one more unit, not overhead allocation.
❌ Standard costing – sets cost benchmarks, not actual allocations.
❌ Break-even analysis – determines when revenues cover costs, not segment profitability.
🧠 Summary: ABC costing shows the true cost-to-serve and profitability of operations.
📖 Source: CIPS L5M9 Study Guide – Operations costs and analysis (pp. 90–96).