Free riders restrict access to their markets while enjoying access to foreign markets

What is the main argument of Federalist 51?

a. Separation of powers and checks and balances are necessary. b. Factions undermine popular sovereignty and threaten governments. c. A bill of rights was not necessary in the Constitution. d. The executive should be chosen directly by the people, not legislatures. e. A unicameral legislature is more democratic than bicameralism.

According to research on how scientists develop their ideas, where do investigators get their research questions?

What will be an ideal response?