Workers may complain about many things at work, but stress is not high on the list. In fact, in a recent survey a majority placed boredom at the top of their list of complaints. The assumption that job-related stress is the most serious problem for workers in the corporate world is thus simply not warranted. Which one of the following, if true, most seriously weakens the argument? ['Those workers who are responsible for the planning and supervision of long-term projects are less likely to complain of either boredom or stress.', 'Workers responding to opinion surveys tend to emphasize those experiences that have happened most recently.', 'Workers are less likely to complain about work if they feel that their jobs are secure.', 'Workers who complain of boredom exhibit more stress-related symptoms than do those who claim their work is interesting.']