The correct answer is B.
The development of cheap iron in the US was the major factor that lead to the building of skyscrapers. Being able to produce iron cheaply can be contributed to Andrew Carnegie. This American business mogul perfected the Bessemer process in several factories across the eastern part of the US. From there, he was able to sell cheap iron to American businesses for the purpose of growing their empire.
1st optionnn correct me if I’m wrong please
King Charles fought for parliament during the civil world
The democratic methods that must have been involved in order to amend the constitution are : c. litigation and recalls
Litigation
is the first step in the amendment because it is the step that bring
the case to the court to be process and recall is the legal step that is
carried out to bring change to the law that is currently written.