For each of the following pairs, which bond would you expect to pay a higher interest rate and why?

a. A bond of the US government or a bond of the Greek government

b. A bond that repays the principal in 2015 or a bond that repays the principal in 2040.

c. A bond from Coca-Cola or a bond from a software company you run in your garage.

d. A bond issued by the federal government or a bond issued by the City and County of Honolulu.

e. A bond issued by the US Government or a bond issued by Coca-Cola.