B is the correct answer.
Legislators are elected by the people and if they are not well thought of by the people, it is unlikely that they will be reelected.
This ensures that legislators respond to the needs of the people but also proves problematic when the people are manipulated into a mob like frenzy.
The church was a central part of people's lives. this was the era in which you start to see religious officials starting to run countries, like the Pope. the role was first formed in the middle ages by the country that occupied Austria-Hungary.
Generally speaking, yes it is true that a historian's analysis of events involves knowing the difference between facts and theory, since it is impossible to make a strong and respectable claim without citing specific, factual historical evidence.