Why did workers form trade unions in the early 1800s?A. New laws forced workers to organize. B.Workers needed to receive training from unions to operate machines. C.Factory owners only hired workers that were union members. D.Workers wanted to fight for better working conditions.

D

Explanation:

Its obvious, because workers were treated unfairly during that time, and they had no way to stand up for themselves. So unions were created to go on strikes, stand up for each other, etc.

by creating a labor shortage that pushed the continent toward a market economy

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.