Explain the primary factors that contribute to making the yields of the two bonds in your pair differ. While three may be a single factor, there will be multiple underlying causes for the factors. State which of the two bonds in your pair you would buy if you had to buy one of the and why.

1. Germany 10 year bonds 1.57% vs Germany 30 year bond yielding 2.4%
2. US 10 year treasury bond yielding 1.96% vs US 10 year inflation indexed treasury bond yielding-0.578
3. France 10 year bond yielding 2.23% vs Greece 10 year bond yielding 11.07%