单选题 Prominent business executives often play active roles in United States presidential campaigns as fundraisers or backroom strategists, but few actually seek to become president themselves. Throughout history the great majority of those who have sought to become president have been lawyers, military leaders, or full-time politicians. This is understandable, for the personality and skills that make for success in business do not make for success in politics. Business is largely hierarchical, whereas politics is coordinative. As a result, business executives tend to be uncomfortable with compromises and power-sharing, which are inherent in politics.
Which one of the following, if true, most seriously weakens the proposed explanation of why business executives do not run for president?

A、 Many of the most active presidential fundraisers and backroom strategists are themselves politicians.
B、 Military leaders are generally no more comfortable with compromises and power-sharing than are business executives.
C、 Some of the skills needed to become a successful lawyer are different from some of those needed to become a successful military leader.
D、 Some former presidents have engaged in business ventures after leaving office.
E、 (E) Some hierarchically structured companies have been major financial supporters of candidates for president.

【正确答案】 B

【答案解析】[解析] 本题的论述根据商业总裁在妥协及分权时不如政治家们自在来解释他们不去竞选总统。要削弱这种解释，就要对该结论的前提进行削弱。若政治家们在妥协或分权时也如商业总裁们一样的感到不自在时，显然就不能用不自在来解释商业总裁们为什么不去竞选总统。由此分析可知(B)是正确答案显而易见。(A)、(C)、(D)和(E)均是无关选项。