Which of the Following Is True for Personal Information Systems

Which of the following is true for personal information systems?

A) Personal information systems that support a particular department are sometimes called departmental information systems.
B) Because one is the sole user of the new system, if new procedures are required, one needs professional help to get the job done.
C) Such systems have only one user and hence procedures need not be documented or formalized in any way.
D) The solutions to problems in a personal information system usually involve more than one department.