Which Is Not Correct

Which is not correct?
A party has a right to inspect the documents disclosed by his opponent except as follows;

A) All the documents listed on form N265 have been disclosed and may be inspected at some stage of the action.
B) Documents that are no longer in the control of the party are excluded from 'inspection'.
C) Documents where the party has a right not to make the document available for 'inspection' may be withheld from any claim to a right to inspect them.
D) When making the document available for 'inspection' is costly and the cost is disproportionate to the issues of the case to permit inspection of it.