Selected costs related to Apple's iPhone are listed below. Identify each cost as either direct materials, direct labor, factory overhead, selling expenses, or general and administrative expenses by selecting the appropriate dropdowns. 1. Camera 2. Advertising campaigns 3. Maintenance of assembly equipment 4. Depreciation on office equipment 5. Depreciation (straight-line) on robotic equipment used in assembly 6. Salary of the chief executive officer 7. Assembly-line supervisor salary 8. Wages for retail store worker Selling expense Listed here are product costs for the production of soccer balls. Identify each cost (a) as either fixed or variable and (b) as either direct or indirect by selecting the appropriate dropdowns. Product Cost Variable or Fixed Direct or Indirect Fixed Indirect 1. Benefits for assembly workers 2. Annual flat fee paid for factory security 3. Machinery depreciation (straight-line) 4. Rubber core for soccer balls 5. Insurance on factory 6. Factory rent 7. Needles used in stitching soccer balls Fixed Indirect Variable Indirect