B. Nixon thinks America is progressing; Kennedy thinks America is standing still.
Explanation:
While Nixon focuses on showing American growth of Gross National Product (GNP) during the current year and calls it a “year of recovery,” and claim such growth to be one of the highest in the world, Kennedy does not focus on such growth but on how things are not working to its full capacity. He, instead, sees America's fifty percent of steel-mill capacity being unused, and how the nation had the lowest rate of economic growth of any major industrialized society in the world last year. He is clearly dissatisfied with such progress and thinks America is standing still.
