Some managers think that the best way to maximize employee performance is to institute stiff competition among employees. However, in situations where one competitor is perceived to be clearly superior, other competitors become anxious and doubt their own ability to perform. Thus, stiff competition can undermine the result it was intended to achieve. The conclusion of the argument can be properly drawn if which one of the following is assumed? ['When competitors perceive the competition as winnable, their overall performance generally improves.', 'Competitors who work to undermine the confidence of other participants often do better in competitions.', 'Those who are perceived to be clearly superior almost always win.', "Doubting one's own ability to perform can decrease one's overall performance."]