The best use of anaphora is C. Yet the vows of this Nation can only be fulfilled if we in this Nation are first, and therefore, we intend to be first.
This refers to the rhetorical appeal that makes use of constant repetition of a sequence of words for dramatic effect.
Hence, we can see that from President Kenedy's speech, he made use of anaphora to convey his ideas and this is best displayed in
Therefore, the correct answer is option C
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