Loosely Coupled Systems Can Best Be Described As

Loosely coupled systems can best be described as:

A) organizations that have subsystems that are related to one another, but each subsystem maintains its own identity.
B) organizations that have many subsystems that have their own goals, unrelated to overall organization goals.
C) organizations that have a main office much like a school district administrative office with satellite offices much like individual schools that have their own vision and mission.
D) All of the above.