The sentence “All computers here don’t work well.” generally

The sentence “All computers here don’t work well.” generally means ________.A.None of the
The sentence “All computers here don’t work well.” generally means ________.
A.None of the computers works well.
B.No computer here works well.
C.Every computer here doesn’t work well
D.Each computer here doesn’t work well.
all,every,each与not连用为部分否定,为什么答案选C.而D不对?