The American civil war was caused not by slavery but by economic factors
First, it allowed for businesses to find new ways to do old tasks and do them more efficiently. It also developed communication and transportation, making it easier for businesses to reach their consumers. By creating new jobs and getting more workers into the American work force, technology helped add to the already expanding American economy. Business leaders known as "robber barons" and "captains of industry" were harnessing this newly emerging technology and using it in their businesses. The Gilded Age was a time where there was great changes and developments in technology
Answer : Option A) The Bessemer process increased the use of steel in many industries.
Option C) Electricity meant that larger and more sophisticated manufacturing machines could be developed.
Explanation : The impact of technologies to the gilded age which was from 1870 to 1900
where the first point applicable is;
i) The Bessemer process increased the use of steel in many industries. The Bessemer process which had been discovered in the 1850's actually brought the special cutting-edge solutions to the production of steel which had a fruitful impact on industries.
ii) Electricity meant that larger and more sophisticated manufacturing machines could be developed. The process of mass production using electricity evolved even more and helped development of new technologies.