Answer:
Unit Level-It is referred to the cost incurred for each unit.
For Example : Direct Labour cost,Direct Material Cost
Batch- Level-It refers to the cost incurred for each batch, irrespective of number of units in each batch.
For Example: Order Processing
Product Level- It refers to the costs incurred for a particular product, irrespective of the number of units or batches of the product produced. EX: cost of research and development
Facility Level-It refers to the cost incurred irrespective of how many units, batches, or products are produced in the plant.
For example: facility upkeep
Unit Level- Direct Labour
Batch Level- Order processing
Product Level-Engineering costs for a new product
Facility Level- Depreciation on factory