Explanation:

The EBITDA/interest expense ratio is classified as a coverage ratio because it measures an issuer's ability to meet (or "cover") its interest payments. Coverage ratios are critical in credit analysis, with the EBITDA/interest expense and EBIT/interest expense ratios being the most common.

• Option A (Leverage ratio) is incorrect. Leverage ratios, such as debt/capital or debt/EBITDA, assess the extent of an issuer's debt relative to its equity or cash flows, not its ability to cover interest payments.

• Option C (Profitability ratio) is also incorrect. While EBITDA is a measure of cash flow, the EBITDA/interest expense ratio does not evaluate profitability but rather the sufficiency of cash flow to service debt.