Consider the Following Costs That Relate to a Bank and a Manufacturer

Consider the following costs that relate to a bank and a manufacturer of software:
Bank
1. Review cost of commercial loan applications
2. Operating cost of human resources department
3. Immediate processing cost of a specific customer's cash deposit
4. Bank membership cost of joining local Chamber of Commerce
Software manufacturer
5. Label and packaging charges from a commercial printer for a new software release
6. Air conditioning/heating costs of the firm's production plant
7. Transport cost of moving the CD-output from production run no. 1 to the company's warehouse
8. Design, development, and coding cost of new spreadsheet software
Required:
A. Classify the eight costs listed as arising from either a unit-level, batch-level, product-sustaining, or facility-level activity.
B. Would number of loan applications or number of customers be a more appropriate cost-driver base for the review of loan applications? Briefly explain.