how did carnegies purchase of allegheny steel help him form a monopoly?\nthe purchase helped carnegie…

how did carnegies purchase of allegheny steel help him form a monopoly?\nthe purchase helped carnegie produce steel more efficiently.\nthe purchase helped carnegie control most of the rail lines.\nthe purchase gave carnegie control of coke production.\nthe purchase gave carnegie access to raw materials.
Answer
Brief Explanations:
Andrew Carnegie's purchase of Allegheny Steel was part of his strategy in vertical integration. Vertical integration involves controlling different stages of production. By purchasing Allegheny Steel, Carnegie could streamline operations, reduce costs, and increase efficiency. Producing steel more efficiently would give him an edge over competitors. Controlling rail lines (related to transportation, not directly the core of steel production monopoly - more horizontal if about rail business itself), coke production (a part but not the main way from this purchase for steel monopoly here), or raw materials (already had some control via other means, and this purchase was more about production efficiency in steel - though raw materials can be part of vertical integration but the key here is production efficiency).
Answer:
The purchase helped Carnegie produce steel more efficiently.