Duality Principle Balances the Accounting Equation

Steps:

• Recall the accounting equation: Assets = Liabilities + Equity.
• Identify that every transaction affects two accounts equally.
• Recognize duality as the principle requiring debits to equal credits in double-entry bookkeeping.
• Confirm the equation's balance stems directly from this dual effect.

Why A is correct:

• Duality principle mandates that every transaction has equal debit and credit effects, ensuring the accounting equation (Assets = Liabilities + Equity) always holds true.

Why the others are wrong:

• B: Going concern assumes ongoing business operations, unrelated to the equation's structural balance.
• C: Materiality focuses on reporting significant items, not the equation's foundational duality.
• D: Realisation governs revenue recognition timing, not the equation's dual-aspect basis.

Final answer: A