Answer:
D. This year's space budget is three times what it was in January 1961, and it is greater than the space budget of the previous eight years combined.
<em>Explanation: </em>
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Philosopher Aristotle showed that there are three key drivers of persuasion and his Greek terms were ethos, logos and pathos. </em>
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Any politician can become better at persuasion because it is a skill and skills are learned. </em>
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<em>Ethos in persuasion is the respect and standing of the speaker himself. </em>
<em>Logos is logic and consistency that the other person will find compelling, when Kennedy addressed students at Rice University saying “This year's space budget is three times what it was in January 1961, and it is greater than the space budget of the previous eight years combined”...</em>
<em>He appealed to logic, there's an obvious logic to that because his argument is based on facts and numbers. </em>
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<em>The last but not least is pathos and in plain English it means appealing to the emotions of the people you're trying to persuade. </em>