The contrast between Nixon's and Kennedy's views is Kennedy believes that economic progress for most Americans has been slow, while Nixon believes good progress has been made.
Richard Nixon was the 37 president of America and was also served as a vice president.
His term was 5 years.
His full name is John Fitzgerald Kennedy, he was the 35th president of America.
Thus, the correct option is b, Kennedy believes that economic progress for most Americans has been slow, while Nixon believes good progress has been made.
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