Identify which of the below costs are direct costs (as opposed to indirect costs) for a shipping company.

Group of answer choices:

Cost to lease shipping vehicles

Salaries of dispatching and communications personnel

Costs of accident cleanup

Wages of transfer yard personnel

Cost of driveway replacement

Wages of drivers

Payroll clerk salaries

Safety training costs

Fuel costs

Maintenance costs of roads and buildings

Cost to lease truck beds

Depreciation of terminal facilities