The Bill of Rights has, during the twentieth century (a) gradually by incorporation, come to be accepted as national policy that applies to every level of government. (b) been incorporated into each state constitution so that all 50 states now actually have the exact language of the Bill of Rights amended onto each state constitution. (c) become unimportant as rights no longer cause much political discord. (d) been so seriously restricted that most civil liberties are primarily protected by state law

The correct answer is A. The Bill of Rights has, during the twentieth century gradually by incorporation, come to be accepted as national policy that applies to every level of government.

Explanation:

The Bill of Rights of the United States is the collective name given to the first ten amendments to the United States Constitution approved on December 15, 1791.

It was a response to calm the fears of anti-federalist groups, some of them influential opponents of the Constitution, and prominent members of the Philadelphia Convention, who argued that it failed to defend the basic principles of human freedom. These amendments guarantee a series of personal freedoms, limit the power of government in judicial and other proceedings; and some powers are reserved to the states and the people. Originally the modifications applied only to the federal government, however, most were subsequently applied to the government of each state through the Fourteenth Amendment through a process known as incorporation.