21 .can be specifically and exclusively identified with a given cost object Sunk Cost O O Period Costs Relevant Costs Indirect Costs 0 Product Costs O Opportunity Cost O Direct Costs Cost Object 10 2 cannot be identified specifically and exclusively with a given cost object. For example, the wages of all employees whose time cannot be identified with a specific product in a manufacturing organization Indirect Costs Period Costs Sunk Cost Opportunity Cost Product Costs Relevant Costs Direct Costs Cost Object