XYZ Corp. issued 20-year callable bonds ten years ago. Which of the following would likely cause XYZ to call these bonds prior to maturity? Select one: a. XYZ's financial health deteriorates b. interest rates fall c. increased in demand for these bonds from investors d. interest rates rise Bond X and Bond Y are identical in every respect except that Bond X is callable and Bond Y is not. Which of the following statements is correct? Select one: a. The required return on Bond X will be equal to the required return on Bond Y b. Call features do not affect the required rate of return for a bond c. The required return on Bond X will be higher than the required return on Bond Y d. The required return on Bond X will be lower than the required return on Bond Y