Answer:Ellis Island is a historical site that opened in 1892 as an immigration station, a purpose it served for more than 60 years until it closed in 1954. Located at the mouth of Hudson River between New York and New Jersey, Ellis Island saw millions of newly arrived immigrants pass through its doors. In fact, it has been estimated that close to 40 percent of all current U.S. citizens can trace at least one of their ancestors to Ellis Island.
Explanation:
The Sherman Anti-Trust Act<span> was the first Federal </span>act<span> that outlawed monopolistic business practices. The </span>Sherman Antitrust Act<span> of 1890 was the first measure passed by the U.S. Congress to prohibit trusts.</span>
C is the answer to your question
<span>They were more secretive and radical.
The Knights of Labor was a secretive organization limiting their membership by excluding those in the organized financial professions and excluding certain immigrant groups.
The American Federation of Labor worked more closely with politicians and economic leaders making them a more moderate union organization.</span>