A) white supremacy groups
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<span>The accuracy of Ida Tarbell’s research about John D. Rockefeller is very important because
It was essential for her credibility as a journalist.
Ida Tarbell's mode of researching about John D. Rockefeller and the Standard Oil company includes:
</span>1) interviewing dozens of Standard Oil employees.
2) visiting Standard Oil headquarters in meetings with a representative of Standard Oil, Henry Rogers
<span>3) visiting Rockefeller’s Baptist church where he continued to serve.
</span><span>4) scrutinizing 300 testimonies, each approaching 1,000 pages of text as part of her research.
</span>
Her thorough research lent her the credibility to write her series about John Rockefeller, the start of the oil industry, and how it became a monopoly.
The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
This animal was the most significant animal to many American Indian nations of the great plains and its demise was connected to the demise of the American Indian people of the great plains.
We are talking about the Bison, better known in the United States as the American Buffalo that was key for the survival of the Native American Indians of the plains.
Bison were key in the life of American Indians because the Natives used to hunt Bison to feed the families. Bison's meat was rich in protein, much needed by the people to live and resist the difficult climate conditions of the time. Furthermore, Indians took the fur of the Bison used it as pieces of clothes to keep them warm during winter times.
It lasted 19 years, 5 months, 4 weeks and 1 day
