The correct answer should be saturday. That is because countries that are eastern of the international date line have enter the new day before the countries that are western, meaning that if a country enters sunday, the countries western of it will still be in saturday.
The Bureau of Indian Affairs was organized in 1824 as part of the "Department of War," since a large portion of US interaction with the Natives had been in the realm of conflict, due to increased white settlement.
1 either A or C not sure sorry 2. 100% B 3. most likely A