Mass production<span> developed during the Second Industrial Revolution as demand increased for manufactured goods. It was perfected and improved upon, when Henry Ford used the idea of mass production to create the assembly line in 1913.</span>
<span>The start of the 1820s, an effective development praising the normal individual and advancing "New Democracy" changed the prior elitist character of American Politics. The questionable race of the Yankee sophisticate John Quincy Adams in 1824 infuriated the adherents of Andrew Jackson.</span>
Christopher Columbus is the explorer who is credited for discovering America. Of course, there were already people living in America at the time who we call Native Americans. There even was a European, Leif Ericsson, who had been to the Americas before. However, it was Columbus' voyage that started the exploration and colonization of the Americas.
The best option would be the <span>C) increased used of electrical appliances.
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