The best and most correct answer among the choices provided by your question is the second choice which is "railroad tracks."
<span>By 1860 the Midwest and the East were united by a network of railroad tracks.</span>
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Im sure it was mainly the idea of humanism. It changed the way people saw education, from knowledge to preparation for life. The humanist idea also bought upon the significance of the human body. Used within paintings and sculptures, a new idea of art was introduced completely
Answer: Yes the United States was justifed in entering worl war 2
Explanation: Reasons why The Japanese Attack on Pearl Harbor, Japanese Control of China and Asia, Germany's Aggression and Unrestricted Submarine Warfare Sinking U.S. Ships, Fear of German Expansion and Invasion. But the neutral USA entered World War II only after many months of argument in Congress and among the general public, and only when a Japanese fleet launched a big surprise air raid against its Pacific naval base at Pearl Harbor in Hawaii on 7 December 1941
