Answer: The northern radicals wanted to severely punish the south
Explanation:
The Smith Act made it unlawful to teach or advocate the violent overthrow of the U.S. government.
In the Austrian Empire, the groups which wanted to establish an autonomous state were B. Czechs and C. Hungarians.
As you probably know, the entire name of the empire is Austro-Hungarian Empire, which means that included both of these countries (as well as what is now considered to be Czech Republic). So obviously those groups wanted to separate and create their own nations.
Athens (Greece) is seen as the first great democracy, at least in the Western World. Many of the roots and opinions of democracy in the Wester World were influenced by Athens, such as the rights of citizens to vote.