Answer:
United States encourage some British North
Explanation:
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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The two main things that the Wagner Act accomplished during the Great Depression was to create the National Labor Relations Board and make it easier for employees to bargain with their employers in favor of higher wages and better conditions.