Which of the Following Defines Efficiency Ratios

Which of the following defines efficiency ratios?

A) Ratios drawn from a business's current assets and current liabilities on the balance sheet that provide insight on its ability to meet short-term debt obligations.
B) Ratios that look at the amount of profit that is being generated by each dollar of sales (revenue) .
C) Ratios that are designed to show how well a business is using its assets.
D) Ratios that provide information on a firm's ability to meet its total and long-term debt obligations.
E) Ratios that measure the performance of the stock of publicly held companies.