D. Variable period cost. (6) Charlie's Chocolate Factory manufactures chocolate bars and ships them directly to wholesalers and retailers across the country. The company has two product lines: milk chocolate bars and chocolate covered almonds. Classify the following company's expense if the cost object is a single product line (either milk chocolate bars or chocolate covered almonds) Advertising campaign for Charlie's Chocolate Factory, no specific products were mentioned in the campaign. A. Direct product cost. B. Indirect product cost. C. Direct period cost. D. Indirect period cost