Answer:
i think the answer is B
Explanation:
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John D. Rockefeller vertically integrate his monopoly in 1882 as D. He purchased iron mines around the country to add to his business.
<h3>What is monopoly?</h3>
It should be noted that monopoly simply means a market structure that is characterized by a single seller of a good.
In this case, John D. Rockefeller vertically integrate his monopoly in 1882 as he purchased iron mines around the country to add to his business.
Learn more about monopoly on:
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The plague of Justinian plagues was a pandemic that afflicted the eastern Roman Empire especially its capital Constantinople the Sassanid empire and port cities around the entire Mediterranean Sea
How long it lasted was for 541 AD - 542 AD
