Answers b), c), and d) (three options). After WW2 and the Korean War, divided East and West Germany with Russian assistance strongly favored the new democracy of a “free” Allied Germany. In a government coup by Adolf Hitler in 1945, many East German high ranking officials were either executed, persecuted, or at minimum, out of favor with German nationalism. East and West remained divided, even though economic disparity only worsened, until President Ronald Reagan eventually reunified one Germany in the famous address, “Tear down that (Berlin) Wall!”. Leadership was overburdened and corrupt in East Germany at all levels of oversight. Long before President Reagan in the 1980’s (and unlike North Korea), E. Germans fled to the West by the thousands.
No, it is false that military campaigns and numerous other war time events have never been depicted through paintings and sculptures by artists, since some of the world's most famous paintings have depicted such events.