6. For each of the following pairs, which bond would you expect to pay a higher interest rate? (Assume that the only relevant difference between the two bonds is the difference noted.) Explain your answer. (a) A bond from the U.S. government or a bond from the city in which you grew up. (b) A bond that repays the principal in 20 years or a bond that repays the principal in 5 years. (c) A bond from Amazon or a bond from a local bookstore chain