What characteristics were important for the smooth operation of the Silk Road and which empires maintained these characteristics?

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

(10 points! ) why did the other allies like great britain and france not support president wilsons 14 points?

True or false: a trust is a giant corporation made up of a group companies