The bill of rights is intended to protect individual freedoms and the
a. rights of those accused of crimes
b. rights of members of congress
c. powers of the states
d. all of the above

 A. the rights of those accused of crimes.  

(The Bill of Rights protected the rights of all citizens.)

Context/details:

Anti-Federalists opposed ratification of the US Constitution.  The Articles of Confederation, in place prior to the ratification of the Constitution of the United States of America, had granted stronger authority to the states. Patrick Henry and other Anti-Federalists were concerned about too much power winding up in the hands of the federal government and its executive branch, thus allowing a small number of national elites to control the affairs of the USA.  They feared this also would diminish the rights and freedoms of individual citizens.  They wanted a Bill of Rights in the Constitution to assure that rights and freedoms would not be compromised in any way.

The Bill of Rights, laid out in the first ten amendments to the Constitution, provided some reassurance to Anti-Federalists after the fight over ratification. The US Constitution was ratified in 1788.  The Bill of Rights was created in 1789 and ratified in 1791.

first paragraph (and busy all the night ,with a silence deep and white )