Classify the following costs for The Car Company as either a product cost or a period cost. Product Cost Period Cost a) Advertising b) Tires c) Assembly Employee Wages d) Salary of Marketing Executive e) Depreciation on Pittsburgh Executive Building f) CEO's Salary g) Plant Manager's Salary h) Depreciation on Somerset Assembly Plant i) Factory Maintenance Supplies j) Glass k) Property Taxes on Somerset Assembly Plant 1) Travel Costs Used by Sales Personnel