Which utility can be used to add, delete, or modify objects in Active Directory?

The correct choice is LDIFDE because it is specifically designed for importing and exporting directory objects into and out of Active Directory using the LDAP Data Interchange Format (LDIF). This powerful utility allows administrators to manage directory objects easily, including adding, modifying, and deleting these objects in bulk through the use of scripts or command line inputs.

LDIFDE enables users to work with multiple objects at once through text files formatted as LDIF, providing a flexible method for making changes to Active Directory. This can be particularly advantageous for large-scale administrative tasks, such as bulk updates or migrations.

While other options like CSVDE, PowerShell, and dsadd have functionalities that can also manipulate Active Directory, they serve different specific purposes or have limitations. CSVDE, for instance, is focused on importing and exporting directory objects but does not support modifications or deletions of existing entries. PowerShell is a robust tool for managing Windows environments, including Active Directory, but the specific context of the question points directly to the capabilities of LDIFDE. dsadd itself is a command used specifically for adding new objects, not for deleting or modifying existing ones.