the debit column of a trial balance amounts to 78 000 the credit column also amounts 609788

The debit column of a trial balance amounts to $78,000; the credit column also amounts to $78,000. Which error may still exist?

1. A journal entry contains a correct debit amount and an incorrect credit amount.
2. A debit entry to the Accounts Receivable account in the journal is incorrectly posted as a credit to the Accounts Receivable account in the ledger.
3. The debit portion of a journal entry is posted to the ledger twice.
4. A cash payment on account of $240 is incorrectly recorded as a cash payment of $420.