I believe it is called a recall election. I hope this helped, have an amazing day :)
The philosophy for expansion by the US government to expand to the Pacific to form one great country was known as Manifest Destiny. It included the encouraged movement of large numbers of people to move West. It also included the building of many railroads to link the different areas of the new west to the east.
The downside was that it destroyed the native americans way of life and forced them onto reservations.
Civil rights has not been achieved in the US. If civil rights were achieved minorities wouldn't have an average lesser wage then the majorities. Their wouldn't be movements for civil rights. We have made significant strides, but we are not there yet.
The correct option is: ELIMINATING DISEASES.
The league of nation refers to a group of nations that came together after the war to address some issues especially the disarmament of nations. Part of their objectives is to eradicate diseases in member countries.