Petty cash is best described as:

• A. A small cash fund used for minor expenses; recorded as an asset; replenished to bring balance back to the established amount, with a reimbursement entry to expenses.
• B. A liability that tracks petty cash obligations to vendors.
• C. A permanent reserve maintained at year-end for miscellaneous costs.
• D. A sub-ledger for payroll disbursements.

Answer: (A)

Petty cash is a small cash fund used for minor, incidental expenses and it is an asset on the balance sheet. The fund is established by moving cash from the main cash account into the petty cash fund. As small purchases are made, you keep receipts and record the actual expenses against the appropriate expense accounts. When the fund runs low, you replenish it to restore the established balance; this replenishment recognizes the incurred expenses and brings the petty cash back up, typically by debiting the various expense accounts and crediting petty cash (or cash in the fund). If there’s any difference between the collected receipts and the cash on hand, a cash short/over account may be used.

This explanation fits because petty cash is indeed an asset that is maintained at a set level and replenished to that level through expense-recording entries. It’s not a liability, a permanent year-end reserve, or a payroll sub-ledger, which is why those descriptions don’t apply.