Which of the following statements about bond ratings and the rating agencies are true? (i) The rating agencies provide assessments of only liquidity risk. (ii) Bonds with ratings of BBB- are are considered high yield securities. (iii) Investment grade bonds tend to have lower yields than junk bonds.

Group of answer choices

All three are true.

Only (iii) is true.

Only (i) and (iii) are true.

None are true.