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A painting is being sold at auction, but a participant feels that it is a forgery. What should investigators do to determine its authenticity?
OA. Compare the genuine artist's signature with the signature of the painting in question.
B. Compare the color palette that the questioned painting used with other similar paintings.
OC. Apply a special reagent to the painting to reveal the quality of the paint.
OD. Place the painting under a UV light to reveal any chemicals or bleach.
