The correct option is A a) Prospective purchasers would prefer to buy authenticated artifacts.
Ans:65)(a)Sol: The author’s argument concerning the effect of the official sale of duplicate artifacts on illegal exaction appears in the last paragraph author predicts that such official sale would reduce demand for “the clandestine product.” The rhetorical question that follows indicates that the author finds it unlikely that any purchaser would prefer unknown provenance to objects of known origin, or, to rephrase, the author assumes that most people would prefer to purchase objects of authenticated provenance as this choice states.