Why did nations adopt authoritarian governments in the 1930s?

Two reasons.

First, a lot of the new states were torn by conflict and found that Parliaments quarrelled and got nothing done. Pilsudski in Poland was dictator from 1926 till his death.

Then there was the World Slump, which caused a crisis everywhere. Hitler was just part of a pattern, and came to power legally.

because people what other people gold

explanation:

the answer is b: an economic crisis throughout the country.