The correct answer is <span>A. Porter is writing social history because he is focusing on lives of large numbers of ordinary people.</span>
The united states expanded during the progressive era by limiting trade with other nations.
<h3>What do you mean by progressive era?</h3>
In US history, the period from the 1890s to 1920 is referred to as the progressive era, an era of intense social and political reforms that aimed at making progress towards a better society.
Federal immigration policies in the Progressive era includes Immigration act limited immigration and excluded all Asian immigrants.
Therefore, B is the correct option.
Learn more about the Progressive era here:
brainly.com/question/17162211
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A . they went up. i am pretty sure that is either the correct or wrong answer.
Answer:
The New World (North/South America + surrounding islands)
Explanation:
All four of these nations explored and established colonies in the Americas.
For example: The British colonized and formed the U.S., and the French and English formed Canada.
