Answer:
The correct answer is A. Nithos.
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"Nithos" is not a commonly used term in evaluating an argument.
The other options - ethos, logos, and pathos - are commonly referred to as the "three pillars" of persuasive communication and are key components of evaluating an argument.
Ethos refers to the credibility or trustworthiness of the speaker or writer making the argument.
Logos refers to the use of logical reasoning, evidence, and facts to support the argument.
Pathos refers to the use of emotions and appeals to the audience's values and beliefs to persuade them.