C is the answer, Many families were separated and their strong family ties, suffered a crippling and traumatic psychological blow.
Winston Churchill gave the iron curtain speech.
Much of their resources had been depleted during the war, especially on the losing side. What also added to this factor was that many towns and cities had been destroyed, and much of the farmlands and crops were damaged also. So not only were the governments weakened after the war, they were also lacking soldiers to defend themselves in case of another war. Germany eventually built up an military to start WWII later on in 1938 - 1939.
Political ideology is a more or less consistent set of believes about policies government to pursue. Political scientists measure the extent to which people have a political ideology by seeing how frequently people use brought political categories (such as liberal and conservative) to describe their own views or to justify their preferences for candidates and policies. They also measure it by saying to what extent the policy preferences of a Citizen are consistent over time or based at any one time on consistent principles. Many scholars believe that Americans are becoming more ideological. On many issues, for example, the policy preferences of average Republican and Democratic voters now differ significantly from one another. There is clear evidence of political elites are more ideological today than they were just a generation or two ago the government attends more to elite views than to popular views, at least on many matters.