The hybrid deployment model is correct because it involves a combination of cloud and on-premises data centers, allowing companies to use cloud services for general operations while keeping sensitive processes on-premises to comply with regulatory requirements. The cloud-only model does not address regulatory concerns about keeping certain data on-premises, and the on-premises model does not leverage cloud services for scalability and high availability. Multi-cloud refers to using more than one cloud provider, which is not directly related to combining cloud and on-premises solutions.