Since it has become known that several of a bank' s top executives have been buying shares in their own bank, the bank' s depositors, who had been worried by rumors that the bank faced impending financial collapse, have been greatly relieved. They reason that since <b> top executives evidently have faith in the bank' s financial soundness </b>, those worrisome rumors must be false. <b> They might well be overoptimistic </b>, however, since corporate executives have sometimes bought shares in their own company in a calculated attempt to dispel negative rumors about the company' s health. <b> They might well be overoptimistic </b>, however, since corporate executives have sometimes bought shares in their own company in a calculated attempt to dispel negative rumors about the company's health. In the argument given, the two boldfaced portions play which of the following roles? ['The first is an intermediate conclusion that forms part of the reasoning called into question by the argument; the second is evidence that undermines the support for this intermediate conclusion.', 'The first summarizes the evidence used in the reasoning called into question by the argument; the second is an intermediate conclusion supported by that evidence.', 'The first is an intermediate conclusion that forms part of the reasoning called into question by the argument; the second is the main conclusion of the argument.', 'The first summarizes the evidence used in the reasoning called into question by the argument; the second states the counterevidence on which the argument relies.']