The answer is C Europe and Asia
Six presidents survived their assassination attempts:
Andrew Jackson (1829-37), Theodore Roosevelt (1901-09), Franklin Roosevelt (1933-45), Harry Truman (1945-53), Gerald Ford (1974-77), and Ronald Reagan (1981-89).
Two party systems are most common in the English-speaking countries of the world and have been for some time, although many people think that it is detrimental to the political environment.