The answer is B. The only explanation I can give is that A and C are wrong because the legislative, judicial, and executive branches all share power. As far as D goes, the states' own laws don't really affect each other so there is no need for the power to be shared among them. Anything outside of the state becomes federal.
Answer:
The addition of the Bill of Rights shortly after the Constitution was adopted
Explanation:
Because the Bill of Rights was ratified in 1791, and the fact that Bill of Rights in the United States helps to protect human rights, including the protection of privacy and liberties.
Hence, when a Georgian, Gazette of the State of Georgia, November 15, 1787, described the lapses of the federal constitution, it was clamoring for a bill of rights that was later ratified.