One literary technique that might lead you towards figuring out the main idea of a piece of writing would be

personification
metaphor
repetition
imagery

The Answer Is Actually "Repetition"

Explanation:

I hate to disagree with people but I had this same question and the answer correct answer was "Repetition"

We can infer that it's repetition because when a poem is repeating a word we can infer that they are trying to give us a hint to something.

Hope I helped:)

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the personification of the word prudence d) it effectively enhances the logos and ethos of the argument.

logos means appeal to the logic or reasoning of the people.

ethos means appeal to the credibility of the argument, that it is worth listening to and acting upon.

the answer is   b suffix addition