B) Second back of the united states.
Hope it helps! :)
Federalist No. 51, titled: The Structure of the Government Must Furnish the Proper Checks and Balances Between the Different Departments, is an essay by James Madison, the fifty-first of The Federalist Papers
Stable acting government and industry, in which the government protects and provides basic support and a just judicial system with practical set of laws, and the industry is not extremely restricted; allowed to flourished and better the economy of a society. These two elements of a civil society determine whether or not a country is strong as much as prosperous.
Ummmm....what's this for???