In 1644 the Chinese capital at Beijing was captured by the rebel leader Li Zicheng and desperate Ming dynasty officials called Manchus for aid
The initial effects of the atomic bomb dropped on Hiroshima and Nagasaki were: the entire city was razed to the ground and nothing left standing.
The answer to your question would be letter B. The other letter choices are incorrect.
Answer: British Impressment; Violance of neutrality; Indian uprisings; Trade Restrictions.
Explanation:
The westward expansion came together with the development of technologies that created modern work environment that we see today. This require a lot of people to be self-capable to survive in such working environment.
This situation really reflect the iconic American ideal of self-reliant individuals that we see in our society today.