Communism relies on what form of economic arrangement?

What is the main goal of the world trade organization a. to fight enforce tariffs b. to fight against terrorism c. to encourage trade d. to regulate international investments

If there were no system of checks and balance, the process of government would eventually fall apart. do you agree with this opinion? why or why not?

What statement shows that the agreement between the fictional nations of ziberia and deerkey is a free trade agreement?