John Adams was the president who sacrificed his popularity.
To prevent spread of communism after the end of WWll
Matthew C. Perry was a 19th century U.S. Naval officer who fought in the Mexican War and headed an important expedition to Japan to open diplomatic relations.
US diplomatic group presentation in Kuban is handled by the United States Embassy in Havana and there is a similar Cuban embassy in Washington Dixie do United States however continues to maintain its commercial economics and financial embargo making it illegal for USA corporation to do business with Cuba
The answer I belive for #10 is B. voting in eletions and
#11 is C. it elimanated the quota system
