Consider using mandatory access controls and compartments to implement an ORCON control. Assume that there are k different organizations. Organization i will produce n(i, j) documents to be shared with organization j.

a. How many compartments are needed to allow any organization to share a document with any other organization?

b. Now assume that organization i will need to share nm(i, i1, , im) documents with organizations i1, , im. How many compartments will be needed?