Question

What is the most widely held ideal of the US political culture?

Answer 1

A) belief in a limited government that protects individual liberties. 

It is not b, since the unitary government means that one body is ultimately supreme. The United States government has 3 branches. 
It is not c, since there is very little belief that the government should monitor individual actions, the culture believes in the protection of privacy. 
It is not d, since the United States does not believe in a weak central government.