Most of the new immigrants lived in the cities and had to compete for low-paying jobs, so it's D.) worked at challenging jobs in the cities
The hiring and firing of the workers when presidential administrations changed in 19th century was known as spoils system. It began when president Jackson became the president in 1829. His supporters thought it necessary to reform the federal government. His opponent opponent considered it to be a corrupt be a corrupt method for political patronage. The opponents liked to call it spoils system. The phrase was first used by Senator William L. Marcy in his speech. President Hayes wanted to reform the civil service appointments which were based on spoils system and tried to change it with merit system.
I think i know the answer it might be <span>manifest destiny</span>
Answer:
Use of copper and a lot of the nations money left us in the great depression.