During the 1800s, an important pull factor for immigrants to the united states was
religion persecution.
freedom of speech.
industrial jobs.
agricultural jobs.

During the 1800s, an important pull factor for immigrants to the United States was industrial jobs. During this time, many industries were coming up in United states and especially in North America and this attracted the immigrants. The correct option among all the options that are given in the question is the third option.

They were constantly being overlooked as a people and were being controlled by people who weren't really native to their homeland.

Answership building; new england was almost entirely mercantilist