A private cloud is a type of cloud computing deployment that provides the consumer exclusive access to a pool of computing resources that are owned, managed, and operated by the consumer or a third-party provider on behalf of the consumer.

A private cloud provides the consumer the greatest degree of control over the environment, because the consumer can customize and configure the resources according to their specific needs and preferences, and can apply their own security and governance policies and standards.

The other options are not the types of cloud computing deployment that provide the consumer the greatest degree of control over the environment. They are either shared or limited by the provider’s settings and rules.

The references for this answer are:

Risk IT Framework, page 23

Information Technology & Security, page 17

Risk Scenarios Starter Pack, page 15