Which of the following procedures would an auditor most likely perform to obtain assurance that slowmoving and obsolete items included in inventories are properly identified?

Choice "c" is correct. Examining an analysis of inventory turnover helps identify slow-moving, excess, defective, and obsolete items included in inventories. In order for inventory to be properly valued, these items may need to be written down. Choice "a" is incorrect. Testing shipping and receiving cutoff provides evidence regarding completeness of inventory and rights and obligations related to inventory, but it does not provide evidence regarding the identification and valuation of slow-moving and obsolete items. Choice "b" is incorrect. Confirming inventories at locations outside the entity's premises provides evidence regarding existence and completeness of inventory, but it does not provide evidence regarding the identification and valuation of slow-moving and obsolete items. Choice "d" is incorrect. Tracing inventory observation test counts to perpetual listings provides evidence regarding the completeness of inventory, but it does not provide evidence regarding the identification and valuation of slow-moving and obsolete items.