I believe it is B or C. Though I am leaning toward C I would maybe look it up as well.
Answer:
they were authoritarian dictators
B) Black Codes
Hope this helps!
The spirit of Liberalism or the spirit of Unity perhaps. Both liberalism and unity among nations were at first the main post ww2 ideas but were soon abandoned with many repressive governments found especially in Eastern Europe, as well as the split of Europe into two blocks and the beginning of the cold war.
Increased food production, medicine advancements, better health conditions, and increased birthrate