Identify Henry’s approach to art evaluation.
Dana wants to buy a painting from an art sale. The seller says that it is a work by the Spanish artist, Salvador Dali, but there is no signature on it. She asks Henry, an art critic, to verify whether the painting is authentic. Henry examines the painting and says he has found a peculiar color in it that only Dali was known to use. He asserts that it is authentic. He is using the _____ approach to art evaluation