Which term refers to facts, examples, or explanations that strengthen a claim?

The term that refers to facts, examples, or explanations that strengthen a claim is "evidence." In the context of writing and argumentation, evidence serves as the foundation upon which claims are built; it provides credibility and substantiation. When a writer makes a claim, they need to support it with evidence to persuade the audience of its validity. This can include statistical data, research findings, case studies, or factual information that backs up the statement being made.

While supporting details can also refer to elements that bolster a claim, they typically encompass a broader range of information, including context and elaboration, rather than strictly emphasizing the factual basis of an assertion. Clarification relates more to making something clear or easier to understand, rather than providing firm backing for a claim. The term "answer" does not precisely capture the idea of strengthening a claim, as it is too generic and does not directly relate to validation or proof in argumentative writing. Thus, "evidence" is the most appropriate choice for reinforcing claims in a compelling manner.