It is impossible for all of the people to get the jobs because _of them are not fit for the work.Anone B all C not all D every one 为什么选B不选C

It is impossible for all of the people to get the jobs because _of them are not fit for the work.Anone B all C not all D every one 为什么选B不选C
It is impossible for all of the people to get the jobs because _of them are not fit for the work.
Anone B all C not all D every one
为什么选B不选C

It is impossible for all of the people to get the jobs because _of them are not fit for the work.Anone B all C not all D every one 为什么选B不选C
看句意.所有人都不可能得到这些工作,因为他们都不适合这工作.
如果选C,那么构成的是部分否定.一部分被否定的话,就是说还有一部分人是适合这工作的.那么就和主句的“所有人都不可能得到这些工作”在逻辑上冲突.
选B就可以避免这个逻辑错误.