Answer:
I believe the answer is numerical data, or B.
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Explanation:
•Historical legend is not a reliable source if you are looking for facts, as it is legend and hasn't been proven yet.
•Popular opinion would not be accurate either, as it is "opinion".
•Storytelling is not factual evidence, so that isn't an option either.
I agree with the person above me
In what paragraph? I guess you are missing some details. Please, double check your question, so we could try to answer it.