Misclassification of credit balance as debit causing trial balance imbalance

Steps:

• Calculate difference: Debit $2570 exceeds credit$2250 by $320.
• Identify that posting a credit balance item to debit side inflates debit total and understates credit total, creating a discrepancy of twice the amount.
• Evaluate choices for items normally on credit side but wrongly debited.
• Select option where error doubles the imbalance effect.

Why A is correct:

• Bank overdraft is a liability with credit balance; recording it as debit adds $500 to debits (wrong) and omits it from credits, causing$1000 excess debit per trial balance rules.

Why the others are wrong:

• B: Discount allowed is an expense with correct debit balance; no misclassification.
• C: Purchases returns is a contra account with correct credit balance; no error.
• D: Sales returns is a contra account with correct debit balance; no imbalance.

Final answer: A