逻辑大全一题，谢谢！！

AmyGMAT

16.   In a political system with only two majorparties, the entrance of a third-party candidate into an election race damagesthe chances of only one of the two major candidates. The third-party candidatealways attracts some of the voters who might otherwise have voted for one ofthe two major candidates, but not voters who support the other candidate. Sincea third-party candidacy affects the two major candidates unequally, for reasonsneither of them has any control over, the practice is unfair and should not beallowed.
If the factualinformation in the passage above is true, which of the following can be mostreliably inferred from it?
(A) If the political platform of the third party is acompromise position between that of the two major parties, the third party willdraw its voters equally from the two major parties.
(B) If, before the emergence of a third party, voters weredivided equally between the two major parties, neither of the major parties islikely to capture much more than one-half of the vote.
(C) A third-party candidate will not capture the votes of newvoters who have never voted for candidates of either of the two major parties.
(D) The political stance of a third party will be moreradical than that of either of the two major parties.（B）
(E) The founders of a third party are likely to be acoalition consisting of former leaders of the two major parties.




答案选E 非常费解的一道题，没有思路，望nn们指点