Answer:
The correct answer is It allowed steel to be produced at a reasonable cost.
Explanation: Bessemer process, invented in 1856.
Bessemer has designed a shape with said receptacle for converting iron that can be heated when oxygen can be blown through the molten metal. With oxygen passed through the molten metal, which would react with carbon, releasing carbon dioxide and producing a purer iron / steel.
The process was quick and cheap, removing carbon and silicon from iron in a matter of minutes, but it suffered from being very successful. Excess carbon was removed and too much oxygen remained in the final product.
Step-by-step explanation: