2. Bond ratings* In February 2018, Aaa bonds yielded 3.38%, Baa bonds yielded 4.51%, and comparable Treasuries yielded 2.86% a. What was the credit spread on Aaa bonds? b. What was the spread on Baa bonds? c. What do you think would be the difference in price (as a percent of face value) between a typical 5% 10-year Baa bond and a similar Treasury bond