How did the invention of the bessemer process benefit the u. s. economy?

a. it refine crude oil into gasoline more efficiently, lowering prices for consumers in to popularize the automobile.

b. it allowed coal to be burned more efficiently, producing les population in making the fuel cheaper for heating houses

c. it allowed locomotive to travel longer distances on the same amount of fuel, leading to lower cargo rates for farmers and merchants

d. it significantly reduce the cost of producing steel, making the material more available for building machinery, railroads, and skyscrapers.