Concept:Working capital measures a business's short-term liquidity by comparing its current assets to its current liabilities.Explanation:Working capital = Current assets - Current liabilities.Here, current assets are debtors and stock: 15,000+20,000=35,000.Creditors of 10,000 are the only current liability.So, working capital = 35,000−10,000=25,000.Answer:C. 25,000