Answer:
It was inexpensive to make ( C )
Explanation:
A steel is an alloy made up of some of the most common elements like iron and carbon. it can also contain other elements but the main elements are usually Iron and carbon.
steel is very affordable and yet has a high tensile strength needed when constructing buildings, bridges, weapons, automobiles and several machines used for various jobs. the use of steel in America was very high because of its ability of having high tensile strength and its affordability.
It is a very economical to use steel than other precious metals like gold for construction and making/building machines.
