Based on the map what assumption can be made about the production of steel in the United States? A) Coal is much easier to transport than iron. (B) Steel milling primarily takes place in rural areas away from metropolitan areas (C) The steel industry is partially dependent upon transporting iron ore on the great lakes (D) All factors of productions related to the production of steel can be found within a single state All factors of steel production are contained within the traditional "rust belt“​