the correct ans is E.
because |a-b| = |b-a|, |x-1| = |1-x| => |x-1|= |x-1|. Hence, x can be any number.
The question should have been worded as "which of the following CAN be the value of X?"
In its existing form, one of the possible choices should have been "NONE
" and that would have been correct answer for the question.