B is the correct answer.
Federal district courts act primarily as the Court of original jurisdiction for the Federal Court system (with some key exceptions). As a result, the lower courts are responsible for charging and trying defendants for violations of federal law and build out the record that appellate courts consider when and if they hear a case.
The borders got smaller for a lot of countries at the end of the Great War but the reason for Austria Hungry was because they were the ones to start the war and so as a consequence the victors of the war divided up the Austro Hungarian Empire thus reducing borders.
Freedom of religion not sure if right