Question 5 (2 points) Which of the following most accurately describes credit rating agencies: i) They provide an ubiased assessment of firm default risk. ii) The announcement of their ratings' changes often moves the YTM of corporate bonds. iii) Unlike in school, a "D" is the best credit rating a firm's bond can receive and an "A" is the worst. iv) There are conflict of interest issues due to the way they get paid for their work. Oi Oii, iv. Oii. O ii, iii, iv