The reason the Great Wall of China was built was because A. a series of invasions from the Mongols
B. A series of invasions from the Japanese
C. A series of invasions from the Russians

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

abraham lincoln

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.