Which principle is James Madison discussing in Federalist No 51? A) Federalism
B) Checks and Balances
C) Republicanism
D) Natural Rights​

Letter B is the right answer

Explanation:

"The Structure of the Government Must Furnish the Proper Checks and Balances Between the Different Departments"

option B

Explanation:

Federalist No. 51 addresses means by which appropriate checks and balances can be created in government and also advocates a separation of powers within the national government. The idea of checks and balances is a crucial part of the modern U.S. system of government.

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c) women should home the rights as men.