Imperialism necessitates control of territories, while rivalry for resources just means control of those resources.
The Depression of 1920-1921 resulted in a sharp increase in the tariff rates. The correct option among all the options that are given in the question is the last option or the fourth option. It was a big deflationary recession that happened in the United States of America. I hope the answer has helped you.
The answer is: Runners allowed villages and cities throughout the empire to communicate quick with rulers far away.
Hope this helps!:)
<span>They saw Germany as the greatest threat. </span>