Which of the following cloud models allows an organization to retain data on site as well as in the cloud?

Public cloud models involve services provided over the internet by third-party providers. Organizations using public clouds do not retain data on-site, as all data is stored in the provider's data centers. This model is ideal for non-sensitive data or applications, but it does not allow for local data retention.

Community cloud models serve a specific community of users with shared concerns, such as security, compliance, or jurisdiction. While they provide a shared infrastructure, they do not inherently provide the capability for organizations to retain their data on-site, as data is often managed in a centralized manner among the community participants.

Private cloud models offer dedicated resources to a single organization, allowing for greater control and security over data. While organizations can store data on-site, a private cloud does not provide the flexibility to leverage public cloud resources and services, which is a defining feature of hybrid models.