Progressives sought to solve the problems that had been created by rapid immigration, and urbanization.
1. unionization
2. segregation
3. industrialization

Option 3. Progressives sought to solve the problems that had been created by rapid industrialization, immigration, and urbanization.

Explanation:

The period in United States' history that goes from 1890 until 1920 is known as the Progressive Era. As the name indicates, this era is characterized by a social and political reform made in an effort to make a better society with better standards of living for its citizens.

The Era was an answer to all of the negative impacts the rapid industrialization, huge waves of immigrants arriving all together at the country, and urbanization had on a society that was not completely ready to handle all of this drastic changes.

the first historical instance of china engaging in internationalism was during the han dynasty.[1] at the start of the han dynasty, the huns in the north were attacking the frontiers of han and trying to obtain riches. emperor wu of han wanted to gain an alliance with a country called dayuezhi so the two countries could join together and fight against the huns.[2] to obtain this alliance, emperor wu sent zhang qian to the west to establish economic and cultural connections.[2] history records that during the han dynasty there were four primary avenues of contact between china and europe. they included the northern land route, the central land route, the southern sea route, and the far southern sea route.[1] the most famous of these routes is the central land route, or the classical silk road, comprising a network of roads stretching from northwest china to the ports of syria and the black sea, which passed through the oasis of the turkestans and northern persia.[1] the silk road was significant for chinese emperors because it provided dominance over central asia by developing resources and provided new markets for the export of china's most valuable resources.[1]