A trial balance would only help in detecting which one of the following errors?

A transaction that is not journalized.

An error when transferring the debit side of journal entry to the ledger occurred; it was recorded as a credit.The credit side of the transaction was recorded correctly.

A journal entry that is posted twice.

A trial balance would help detect all of these errors.

For a given transaction, the account that should have been debited was credited and the account that should have been credited was debited.