Which of the Following May Cause the Sum of the Debit

Multiple Choice

Which of the following may cause the sum of the debit column of a trial balance to differ from the sum of the credit column?

A) posting the same wrong amount to both sides of the right accounts
B) posting an amount to the wrong side of the right account
C) posting an amount to the right side of the wrong account
D) reversing the postings,i.e.,debiting the account that should have been credited and crediting the account that should have been debited.