Final answer:
The account used in the current ratio but not the quick ratio is inventory.
Step-by-step explanation:
The account used in the current ratio but not the quick ratio is D) inventory. The current ratio compares a company's current assets to its current liabilities and includes inventory as a current asset.
However, the quick ratio excludes inventory and focuses on the more liquid assets of a company, such as cash, marketable securities, and accounts receivable. Therefore, inventory is used in the current ratio but not the quick ratio.