Im not sure about this, but i think it is,
B) The constitution, idea of religious liberty.
It might not be correct, but it was what i understood from -
http://www.wallofseparation.us/the-origins-of-wall-of-separation/
I hope this helps!
Yes, that is true that they did write their own constituions.
Explanation:
because they were used to their everyday life and didn't like introductions of new cultures and myths because they feared chances of rebellion and wars
The principle of limited government is most clearly reflected in the constitution as ratified in 1788.
Limited government is a term used in political philosophy to refer to a system in which the government does not exercised absolute power; or where governmental power is restricted by law, usually in a written constitution.
For instance, The United States Constitution introduces an example of the federal government not possessing any power except what is delegated to it by the Constitution.