In the late 1830s, many people moved west most likely to escape O political turmoil.
O poor economic conditions.
O fights over land control.
O urban pollution

poor economic conditions.

Explanation:

from the 1820s to 1830s, the eastern United States was facing poro economic conditions that made life hard on the people who lived there. wanting better lives for themselves and their families, many people moved west to escape their poor economic conditions. some people for example moved west because they were hoping that they could get a lot of rich farmland and grow cash crops (like cotton) there

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.

the answer to this question is the third option. hope this