The increase of technology used during the construction of the railroads and factories is considered the second Industrial Revolution. This is because of the many inventions and help of transportation use. Hope this helps.
The answer is "C" the raising of tariffs in different countries throughout the world led to a restriction of trade.
In 1914, many Americans believed that the Monroe Doctrine encouraged them to follow a policy of "protectionism", since this doctrine stated that any further efforts by European nations to colonize the Americas would lead to an American retaliation.
The Railroads were the first big business
