One reason John F. Kennedy's assassination deeply affected people was becauseAnswer Choices: A) he had represented hope for a better future. B) no...

Three of these options are completely false.  The only
possible answer is A.  The main reason that people mourned JFK as that his
administration was the time of "Camelot."  JFK was an attractive, young man with a nice
family.  He seemed to be the symbol of a country on the rise, moving towards better
times.

JFK was not the first president assassinated.  Even
if you don't remember that McKinley or Garfield was assassinated, you should remember
that Lincoln was.   After JFK was killed, Pres. Johnson launched the War on Poverty, so
poverty obviously hadn't been stamped out.  The communists had already taken Cuba before
JFK ever became president.  That is why he was involved in things like the Bay of Pigs
invasion and the Cuban Missile Crisis.

A is the only
possible answer.