Which term best matches the description Evidence that is reliable and cannot be disputed?

• A. Hard Evidence
• B. Unknown Unknowns
• C. Theories
• D. Guesses

Answer: (A)

Hard evidence is tangible, verifiable information that stands up under scrutiny. It comes from observable data or reliable records that others can check, such as fingerprints, DNA, calibrated instrument readings, official documents, or clearly time-stamped records. Because it is based on facts that can be independently confirmed, it resists dispute and strengthens conclusions more than explanations or guesses. The other ideas described—theories are explanations that require supporting evidence; guesses are speculative; unknown unknowns are gaps in knowledge—do not themselves serve as reliable, dispute-proof evidence. Therefore, the term that best matches the description is hard evidence.