ADDA Ltd., manufactures motors and compressors. ADDA has been accumulating manufacturing overhead costs into one cost pool, and charged $250 overhead cost to each unit of product. ADDA made 4,200 units of motors and 2,800 units of compressors last year. The cost accountant believes that there are significant differences in how each product line uses resources, and is considering using the ABC costing method to allocate the manufacturing overhead costs. She analyzes the manufacturing overhead costs and gathers the following information:

Activity Costs	Cost Driver
50% of the overhead costs is for machine amortization	Number of units
30% of the overhead costs is for inspections	Number of inspections
20% of the overhead costs is for design	Number of designs

The Motor Department has inspected 850 times and 20 designs done, while the Compressor Department has inspected 1,250 times and 50 designs done.

Identify the cost hierarchy level for each activity:

Activity Cost Hierarchy

1. Machine amortization - a) unit level, b) batch level, c) product level, d) organization level

2. Inspection - a) unit level, b) batch level, c) product level, d) organization level

3. Design - a) unit level, b) batch level, c) product level, d) organization level