_________________ should be used when you want to reinforce the importance and significance of your arguments, especially when you are not an expert on your topic. Be sure to stress the competence and lack of bias of your sources, and emphasize their recent nature.

Testimonies are statements or opinions from people with relevant knowledge or experience, so they can strengthen an argument when you are not an expert yourself. Their persuasive value depends on choosing sources who are competent, unbiased, and up to date. Therefore, the correct choice is “Testimonies.”

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