The database objects created in an SAP HANA Deployment Infrastructure (HDI) container are owned by a generated, container-specific technical user. This user is created automatically when the HDI container is created and has a name that starts with '#DI_' followed by a random string. This user has full access to the objects in the HDI container and can grant privileges to other users or roles. The other options are incorrect because the XS advanced user who deployed the CDS model, the database user with the access role, and the database user with the external privileges role are not the owners of the database objects in the HDI container, but rather have different levels of access to them depending on the privileges granted by the HDI container owner or administrator. References:
* SAP HDI Containers - SAP Help Portal
* The SAP HANA Deployment Infrastructure - SAP Press
* HDI Container Administration on HANA Cloud - SAP Blogs