Answer:
People may have the same question as you and get it right.
The answer is false because a subordinate clause cannot stand alone as a sentence because it does not provide a complete thought
In 1750-1900 countries were going through periods of rapid industrialization because of the industrial revolution. this industrialization brought on mass production of weaponry and goods which lead countries to participate in an arms race against one another to see who has the superior weapons, machinery, and resources. this constant competition echoed out culturally and socially too, hence the origin of nationalism.