Concept:Working capital measures a business's short-term financial health by comparing current assets and current liabilities.Explanation:Working capital is calculated using the formula:Working capital=Current assets−Current liabilitiesFirst, add all current assets:Debtors+Cash in hand+Closing stock=$10,000+$5,000+$10,000This gives:Current assets=$25,000Next, add all current liabilities:Overdraft+Creditors=$8,000+$12,000This gives:Current liabilities=$20,000Now subtract liabilities from assets:$25,000−$20,000=$5,000Therefore, the working capital is $5,000.Answer:C. #5,000.00