Answer:
researchers and racist
Explanation:
because they are the central idea in the article
Answer:
In each case Carnegie is referring to the accumulation and unequal distribution of wealth, which have “revolutionized” human life for the good (“highly beneficial”).
C) topic
Usually you do not repeat the title in the paragraph it is normally the topic. When you repeat the topic it is when you need to remind the reader what you are talking about or how something relates to what is happening.