求助!!一道逻辑题!!
Any person who drops out of high school will be unemployed unless he or she finds a low-paying job or has relatives with good business connections.
Which one of the following conclusions CANNOT be validly drawn from the statement above?
A. Any person who drops out of high school, will be unemployed, have a low-paying job, or have relatives with good business connections.
B. Any high school dropout who has neither a low-paying job nor relatives with good business connections will be unemployed.
C Any employed person who has neither a low -paying job nor relatives with good business connectoins is not a high school dropout.
D. Any high school dropout who has a job that is not low-paying must have relatives with good business connections.
E. Any person who has relatives with good business connections and who is not a high school dropout must be employed at a job that is not low - paying.
答案为什么是E ??
原命题:
从高校辍学的学生有工作---〉1.他门找了一份低收入的工作,Or 2.他们有好的商业关系
A选项不明白是怎么推的,和原命题有什么关系?
B选项为原命题的逆否命题所以可以从原命题中推出(排除)
C选项同B选项为你否命题(排除)
D选项,从高校辍学的学生有工作——〉2.他们有好的商业关系 为原命题的重述,所以排除。
E选项不明白是怎么推的 ?
求助!!!!!!!!!!
谢谢!!!!!