Answer:
Private.
Step-by-step explanation:
The private cloud is a computing service offering a proprietary environment to a single organization. In simple terms, it is a single-tenant environment, which means that the organization (the tenant) can use it without sharing its resources with others. It is also known as internal cloud or corporate cloud.
Therefore, it is a private cloud computing system that gives the organization a great level of customizability, flexibility, and control ability over data and applications.
Thus, a private cloud is a correct answer.