Sometimes it is advisable for a medical patient to seek a second opinion. But this process can be awkward for both the patient and the physicians, since the patient often worries that the first physician will be alienated. In addition, for the first physician there is the issue of pride: a second opinion tacitly highlights a physician' s fallibility. And the second physician is in the position of evaluating not only a patient' s health, but also, inevitably and uncomfortably, a colleague' s work. Which one of the following most accurately states the conclusion of the argument as a whole? ['Physicians who are called upon to offer second opinions are always uncomfortable about evaluating the work of colleagues.', 'The process of obtaining a second medical opinion can be awkward for those involved.', 'In cases in which second opinions are necessary, the first physician often feels that his or her professional judgment is called into question.', 'Because of the awkwardness involved, it is best for patients not to seek second opinions unless it is absolutely necessary.']