In which business did andrew carnegie create a monopoly?

steel industry

Explanation:

Andrew Carnegie went a long way in creating a monopoly in the steel industry when J.P. Morgan bought his steel company and melded it into U.S. Steel.

the correct answer is d

attacks by the seljuk. a devastating blow to the entire byzantine world was dealt by christian crusaders from the west. the venetians were eager to destroy byzantine power and offered the crusaders money, ships, and part of the spoils of war.

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