Starting with the election of President Andrew
Jackson (1828), voter participation increased due
to the end of property requirements for voting by
many states. We technically used to have. It not any longer. God bless America! ;)
John F. Kennedy was the president of the United States of America during the Cuban Missile Crisis. So the correct option in regards to the given question is option "B". The Cuban Missile Crisis occurred in the year
1962.<span>
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Political Domino is a political theory that was developed during the Cold War that stated if one nation fell to communism surrounding nations would likely fall to communism as well. So option "A" in regards to this question is the correct option.
In the light of your question I think it was a Russian success and the US is yet to achieve such achievements. During that time when the Cold War is in the climax between the two superpowers both competed not only in arms race but technological advances trying to outwit each other. The Russians gain the upper hand because they were able to make the things stated above before the United States but in the end the US was able to make also such things in their own ways and successfully outwitting the USSR in economy and world power.
Any more details on the question I’m a bit confused.