14. Which one of the below is true for liquidity ratios? a. They are used to determine how well a company is managing its assets and if the assets are being used at the optimum level. b. They are used to measure the ability of the firm to meet its short-term creditors' claims c. They indicate how much of the company's net worth and asset commitment is being financed with debt (sources of funds obtained from creditors). d. They determine how well the firm is using its assets and sales revenue to generate a positive return for its owners