is most likely?

• A. Business risk is the chance that the firm will be unable to cover its operating costs and is affected by a firm's revenue stability and the structure of its operating costs (fixed vs. variable).
• B. Financial risk is the chance that the firm will be unable to cover its operating costs and is affected by a firm's revenue stability and the structure of its operating costs (fixed vs. variable).
• C. Interest rate risk is the chance that changes in interest rates will adversely affect the value of an investment; most investments decline in value when the interest rates rise and increase in value when interest rates fall.
• D. A and C.