How did the bessemer process contribute to the development of carnegie’s monopoly?

a. it allowed carnegie to produce higher quality steel more quickly, which increased demand.
b. it made transportation of steel faster and more efficient, lowering carnegie’s costs.
c. it allowed carnegie to cut his cost of labor, increasing his profits.
d. it allowed carnegie to replace coal as a fuel supply, cutting his costs.

(can someone . has to be turned in 1) - explain one similarity between the federal, state, and local governments. ( question 2)- explain one difference between the federal, state, and local governments. ( question 3)- explain one similarity between the federal executive branch and the state executive branch. ( question 4) - explain one difference between the federal executive branch and the state executive branch. (question 5) - explain one similarity between the federal legislative branch and the state legislative branch. ( question 6) - explain one difference between the federal legislative branch and the state legislative branch. ( question 7) - explain one similarity between the federal judicial branch and the state judicial branch. ( question 8) - explain one difference between the federal judicial branch and the state judicial branch.