77.What was the name of the U.S. war between the North and the South?

Select one:

AWorld War II

BWar of 1812

CRevolutionary War

DCivil War

78.Why does the American flag have 13 stripes?

Select one:

AThey represent the 13 military heroes of the Revolutionary War.

BThey represent the 13 original colonies.

CThey represent the 13 signatures on the U.S. Constitution.

DThey represent the 13 members of the Second Continental Congress.

79.During the Cold War, what was the main concern of the United States?

Select one:

Acolonialism

Bsectionalism

Ccommunism

Dimperialism