<span>D. more American workers relocating to urban centers. </span>The factory system was first adopted in Britain<span> at the beginning of the </span>Industrial Revolution<span> in the late 18th century and later spread around the world.</span>[1]<span> It replaced the </span>putting-out system<span>. The main characteristic of the factory system is the use of machinery, originally powered by water or steam and later by electricity. Other characteristics of the system mostly derive from the use of machinery or </span>economies of scale<span>, the </span>centralization<span> of </span>factories<span>, and </span>standardization<span> of </span>interchangeable parts<span>.</span>
The sinking of Lusitania didn't directly cause the United States to enter the war. It did, however, fuel virulent anti-German sentiment in Britain and the United States and hinder diplomatic relations between Germany and the United States
