Regarding immigrants in the United States, progressive reformers Group of answer choices favored quickly assimilating new arrivals into American society. supported limiting the number of new arrivals. argued that the growing immigration population had created social problems. both supported limiting the number of new arrivals, and argued that the growing immigration population had created social problems. All these answers are correct.

both supported limiting the number of new arrivals, and argued that the growing immigration population had created social problems

Explanation:

Progressive reformers were known for their movement to end corruption,improve welfare and protection of citizens as well as increase government intervention I'm making this possible. It originated from the need to work on issues that had freshly arisen at the time such as industrialization, urbanization and immigration and corruption.

The progressive era(1890s to 1920s)in America was a time of negative views on immigration. Progressive movement for Americams during this period consisted nativism with the belief that a benevolent immigramt policy was bad for the country.