Aquamarine Antiques looked into ABC as a method of costing because of the variety of items it produces and the many different activities in which it is involved. The activities listed below are some of the possible cost pools for Aquamarine.

-Assembling -Payroll -Billing - Plant supervision

Digging trenches- Production design- Janitorial - Purchasing materials

Machine maintenance - Selling- Machine set ups - Testing - Molding

Welding - Packaging

(a) For each of these cost pools, what would be the likely activity cost driver?