Need some help with the following question, thanks

We Store It Company rents storage units of various sizes to individuals and companies. The following activities have been identified as activity cost pools for accumulating overhead and assigning it to rental services provided. For each activity, identify a cost driver that might be used to assign overhead costs. Activity Cost Driver (a) Repairs (b) Customer Setups (c) Employee training (d) Supplies ordering (e) Temperature/Humidity control (f) Security (g) Cleaning Number of Supply Orders Number of Units Cleaned Number of Employees Number of Repairs Square Footage Number of Kilowatt Hours of Electricity Number of Customers Setups