The League of Nations was established after WWl between the United States and some European countries as an attempt to try to stay out of future wars. It was proposed by President Woodrow Wilson, but Congress denied involvement in the organization due to the fact that they believed we should not be meddling in Europe's affairs.
The development of banking during commercial revolution in western Europe was significant because it allowed for the creation of private and public credit--meaning that much larger ventures could be started due to an increase of capital, which allowed people to take bigger risks.
They got to prove their worth and that they were patriotic.
It would be "D. Express mail" that <span>guarantees next day delivery, although it should be noted that next day delivery can be arranged through other postal channels as well. </span>