The first is the false statement. In reality East Germany became a Soviet ally while West Germany became a US ally.
The integration of the radio into widespread use during the 1920s most transformed the American economy and culture, since the radio allowed people to receive both news and entertainment far more easily.
That you meet certain legal requirements for becoming a U.S. citizen is called "naturalization." You must have "good moral character" to become a naturalized U.S. citizen.
