Homogeneous region is a region where the people are similar. The answer to your question will be whichever one mentions people being the same.
I believe the three terms you are looking for is diplomatic, military, and economic ways.
D - People who believed that the appropriate role of the government was to address the major social problems of the day
This is because the Progressives wanted better working conditions as well and wanted the government to regulate large monopolies.
Hope this helps!
