[讨论]这题是LSAT的吧?把我自己都搞晕了...

Ann will either take a leave of absence from Technocomp and return in a year or else she will quit her job there, but she would not do either one unless she were offered a one-year fellowship at a prestigious university.  Technocomp will allow her to take a leave of absence if it does not find out that she has been offered the fellowship, but not otherwise. Therefore, Ann will quit her job at Technocomp only if Technocomp finds out she has been offered the fellowship.

Which one of the following , if assumedm allows the conclusion above to be properly drawn?

(D) Ann will take a leave of absence if Technocome allows her to take a leave of absence.

靠排除法选的...文章的推理结构明白..但是不明白为什么这个是必要条件..感觉加上这个条件推理异常混乱!!!

请逻辑的大侠们都来帮小弟一下.谢谢.....