Which of the following three statements about ratios is correct? a. A steadily rising Days Sales in Inventory (DSI) that exceeds industry averages is generally considered to be a favorable trend b. If Days Sales in Receivables (DSR) is materially longer than the company's credit terms, this may indicate a collection problem c. Times Interest Earned (TIE) is a balance sheet measure of a firm's utilization of long-term debt d. All of them are false e. All of them are true Select one: a. One is true b. Two are true c. All are true d. All are false