The option that best describes the claim that exercise reduces the chance of injury is:
A claim represents the main message of a text that is supported with facts. So, if the claim of a passage is that exercise reduces injury, then the author is tryig to say that the calim is a believable fact.
Note that it is a fact and not an opinion because the author does not present it as a personal belief.
Learn more about facts and opinions here:
https://brainly.com/question/959794
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