I would say the internet since overtime, the internet is becoming used more than books and physically notes.
In 1934 the Communists suffered huge losses against the nationalists in the Chinese Civil War. Faced with the prospect of annhilation the leaders of the Comunist army shose to start what is now called the Long March. This was a tactic of withdrawal into mountainous areas, some 2500 miles to the north and west. The purpose was simple: survival. By undertaking a tactical withdrawal the Communists could ensure that they still had an effective fighting force; could select easy to defend locations; could regroup and could ensure that the Nationalists supply lines were long and susceptible to attacks.
Freedom of religion is a substantive right protected by the Bill of Rights. The correct option among all the options that are given in the question is the first option or option "a". The Bill of Rights is actually the collective name that is given to the first ten amendments of the United States Constitution. I hope this has helped you.
The answer is A. precedent