Norman Stark, Inventory analyst at fictional Grimault Industries, is considering the use of the ABC method of classifying inventory so that he can exercise better control over the critical items in the company€™s inventory. He collected a random sample of ten inventory items, and their unit cost and annual usage are given in the following table. Use the ABC method to classify these inventory items:

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Annual Usage (in units) Unit Cost (in U.S. dollars) Item 6,000 1.4 2 1,500 10 3 11,000 9.5 4 6,500 2.5 8,500 0.6 6. 7,000 14.5 6,000 0.8 8. 5,500 1.2 8,000 3.5 4,000 2.5 10