Developed countries such as the US participate i most of the world's trading activities because they 1,do not tend to produce useful items
2,have the most difficulty meeting people's basic needs
3,make and sell large quantities of manufactured goods
4,are home to most of the world's population and national resources

ok sorry the answer is a. by their religion

it would be that mali has the worst literacy rate than the others

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.