What was the economic incentives of expansion during manifest destiny

What ideas, institution, and causes became the focal points of chinese and islamic resistance respectively to the west in the latter half of 19th century and the first decades of the 20th

What event did not contribute to the start of ww11

Who ever answers first gets ! trade in the vedic age led to a.the rise of kingdoms because of the importance of controlling land and long-distance travel routes b.the building of an extensive system of roads because of the difficult terrain c.the creation of a large banking class because of the need to exchange different currencies d.the development of a centralized government that controlled the economic decisions of its people