Classify each of the following system as an example of a mandatory, discretionary, or originator controlled policy. In each system, state who is the creator, who is the owner of the object, what is the system, who is the admin of the system, and who decides the permission for your selected type of access control. (a) In a Linux system, a file's permission is set by the own of the file. (b) In a software repository, a software package can be distributed only with author's consent. (c) In a classified NSA database, only generals with top secret clearance can search in the database.