The answer is "D. They made strict laws."
The Danube rises in Germany's Black Forest, flows through the heartland of Austria, forms the border with Austria and Slovakia, then Slovakia and Hungary, before flowing through Hungary, into Croatia and Serbia, to then form the boundary between Serbia and Romania, then Romania and Bulgaria, where it finally empties if that helps
Building block for our country
The answer is Cultural Diffusion.
Answer:
The German concept of Lebensraum "living space") comprises policies and practices of settler colonialism which proliferated in Germany from the 1890s to the 1940s. First popularized around 1901, Lebensraum became a geopolitical goal of Imperial Germany in World War I (1914–1918) originally, as the core element of the Septemberprogramm of territorial expansion. The most extreme form of this ideology was supported by the Nazi Party (NSDAP) and Nazi Germany until the end of World War II.
Following Adolf Hitler's rise to power, Lebensraum became an ideological principle of Nazism and provided justification for the German territorial expansion into Central and Eastern Europe. The Nazi Generalplan Ost policy ('Master Plan for the East) was based on its tenets. It stipulated that Germany required a Lebensraum necessary for its survival and that most of the indigenous populations of Central and Eastern Europe would have to be removed permanently (either through mass deportation to Siberia, extermination, or enslavement) including Polish, Ukrainian, Russian, Czech and other Slavic nations considered non-Aryan. The Nazi government aimed at repopulating these lands with Germanic colonists in the name of Lebensraum during World War II and thereafter. Entire indigenous populations were decimated by starvation, allowing for their own agricultural surplus to feed Germany.
Hitler's strategic program for world domination was based on the belief in the power of Lebensraum, especially when pursued by a racially superior society. People deemed to be part of non-Aryan races, within the territory of Lebensraum expansion, were subjected to expulsion or destruction. The eugenics of Lebensraum assumed the right of the German Aryan master race (Herrenvolk) to remove indigenous people in the name of their own living space. Nazi Germany also supported Fascist Italy's spazio vitale and Imperial Japan's Hakkō ichiu.
Explanation: