Concept:Acid test ratio measures short-term liquidity after removing stock from current assets.It is also called the quick ratio.Explanation:Formula: Acid Test Ratio=Current LiabilitiesCurrent Assets−StockCurrent assets are Stock, Debtors and Cash: 40,000+6,000+8,000=54,000Remove Stock from current assets: 54,000−40,000=14,000Current liabilities are Creditors and Accrued wages: 9,000+5,000=14,000Acid test ratio =14,00014,000=1:1Answer:A. 1:1