Answer:
Closed system
Explanation:
An organization that has no interaction with its external environment is called a "Closed System"
A Closed System is a form of management system whereby the organization is operated or run solely on its own without any form of interaction or influence from the outside world. This is the opposite of the Open system.
Hence, Closed System operates such that the system doesn't affect the outside and the outside doesn't affect it either. It also regulates and influences itself.