Correcting wrong-side posting in control accounts Steps:

• Note the reported debit balance of $10,000 includes the erroneous$2,000 entry.
• Identify the error: the $2,000 entry, meant for purchases ledger, was posted to sales ledger on the wrong side.
• Apply accounting rule: wrong-side posting misstates the balance by twice the entry amount ($4,000).
• Adjust the overstated debit balance: $10,000 -$4,000 = $6,000.

Why A is correct:

• Wrong-side errors in ledger accounts overstate/understate balances by 2x the amount, per standard error correction principles.

Why the others are wrong:

• B: Subtracts $2,000 once, failing to account for the doubling effect of wrong-side posting.
• C: Adds $2,000, incorrectly assuming the error understated the balance.
• D: Adds $4,000, wrongly treating the error as understating by twice the amount.

Final answer: A