Final answer:
The double-entry accounting system is where each transaction impacts at least two accounts, ensuring the accounting equation remains balanced. The correct option is 2.
Step-by-step explanation:
Every transaction will be recorded in at least two accounts under the double-entry accounting system. This method of accounting is based on the principle that each transaction has two-fold effects and thus affects at least two separate accounts.
It ensures that the accounting equation (Assets = Liabilities + Equity) remains in balance after each transaction. For instance, if a business receives cash from a customer for a sale, it will record an increase in Cash (asset account) and an increase in Sales Revenue (equity account).