According to the Constitution, who is the presiding officer in the U.S. Senate?

The theory that it does not make economic sense for someone to participate in collective action when they can receive a benefit without participating is known as

A. elite theory. B. a purposive incentive. C. pluralist theory. D. a solidary incentive. E. rational choice theory.

What can the permanent members of the UN Security Council do that nonpermanent members cannot?

A. abstain on resolutions B. veto resolutions C. request a meeting of the Security Council D. set the agenda of the Security Council