B is the best answer. The author begins the third paragraph by saying “you might object…” in order to anticipate possible objections to the adoption of his proposal. In the next sentence the author asserts that “ancient artifacts…should be available for all to appreciate, not sold to the highest bidder” (lines 29-33), acknowledging an opponent's fear that individuals might be allowed to purchase objects that ought to be displayed in public institutions. This objection is paraphrased in this choice.