Answer:
B. proves the equality of the total debit balances and total credit balances of ledger accounts after all adjustments have been made.
Explanation:
An adjusted trial balance contains the the ending balances of all accounts of the financial statements after adjusting entries have been made. In adjusted trial balance, the various year-end adjustments are made to the accounts after which a statement of comprehensive income and then a statement of financial position can be prepared, using these adjusted balances.
So based on the above discussion the answer is B. proves the equality of the total debit balances and total credit balances of ledger accounts after all adjustments have been made.