A museum director, in order to finance expensive new acquisitions, discreetly sold some paintings by major artists. All of them were paintings that the director privately considered inferior. Critics roundly condemned the sale, charging that the museum had lost first-rate pieces, thereby violating its duty as a trustee of art for future generations. A few months after being sold by the museum, those paintings were resold, in an otherwise stagnant art market, at two to three times the price paid to the museum. Clearly, these prices settle the issue, since they demonstrate the correctness of the critics' evaluation. The reasoning in the argument is vulnerable to the criticism that the argument does which one of the following? ['It concludes that a certain opinion is correct on the grounds that it is held by more people than hold the opposing view.', 'It bases its conclusion on facts that could, in the given situation, have resulted from causes other than those presupposed by the argument.', 'It rejects the judgment of the experts in an area in which there is no better guide to the truth than expert judgment.', 'It bases a firm conclusion about a state of affairs in the present on somewhat speculative claims about a future state of affairs.']