<u>Answer</u>:
Gregory I increase the political power of the pope by (D) None of the above methods.
<u>Explanation</u>:
During this time, Gregory l increased the political power of the pope. This was achieved by contributing the church revenues for the welfare of the people. These money or the revenues were used to built roads and used for other essential requirements of the people.
Even to support financially for military and other public requirements, the church revenues were only used. This helped the poor and needy people also and saved their lives. Starting from laying roads and constructions of buildings it was only the revenue money used widely for all the developments.
The economist John Maynard Keynes said that "<span>(A) Using government spending to increase consumer demand for goods"</span> was necessary to restart the economy during the Depression, since the private sector was unable to do so on its own.
The exodusters left the South to migrate to Kansas and other western states.
Well this is my own Opinion but I say "Maybe", Many Native Americans fought in WW1 and WW2, even though they were forced Assimilation.