Accountant: Shareholder profits are down 30 percent because of a lack of interest in our services. If our stock continues to decline, the corporation might have to consider merging with a larger organization. We must increase interest in our services. Accordingly, we must revamp our marketing department and hire new advertising executives. Shareholder: Wrong. Instead of revamping the marketing department and hiring new advertising executives, the corporation could consider changing its services to better meet the needs of our twenty-first-century clients. The shareholder's suggestion that the corporation could consider changing its services to better meet the needs of the corporation's twenty-first-century clients plays which one of the following roles in the argument? ["It presents supporting arguments that strengthen the accountant's proposal.", "It is a claim that must be corroborated if the accountant's conclusion is to be established.", "It highlights a potential flaw in the accountant's argument.", "It is used to illustrate the general principle that the accountant's argument presupposes."]