Answer:
III. I, II, III, and IV.
Explanation:
The debit-credit balance is necessary for maintaining the accounting equation in balance, i.e. all the debits must have a corresponding credit.
Asset accounts increase when they are debited and decrease when they are credited.
Liabilities accounts decrease when they are debited and increase when they are credited.
Debits are on the left side of a t-account and credits are on the right side.