一道简单的逻辑题。。

franciszmy

No ambitious politician will challenge an elected public official running for reelection unless that official appears vulnerable. Nonetheless, elected public officials who do not appear vulnerable as they attempt to win reelection rarely run unopposed.

If the statement above are ture, which of the following conclusions can be properly drawn from them?

A. If an elected official running for reelection appears vulnerable, that official's challengers will all be ambitious politicians.

B. Some elected officials running for reelection are challenged by people who are not ambitious politicians.

C. Elected officials running for reelection who do not appear vulnerable are themselves ambitious politicians.

D. A person who is not an ambitious politician cannot win an election contested by the current officeholder.

E. A politician's career will be seriously set back if the politician wages an unsuccessful campaign for elective office.

这题答案是B，请问B为什么对？实在想不明白

franciszmy

没有人会吗。。。？

xfi883

原文大意：

虽然，野心家不会去攻击没有弱点的民选官员。

但是，没有弱点的民选官员却仍会遭遇竞争对手。

很显然，结论应该是，这个竞争对手不是野心家。因此，答案是A。