You want to move all objects of the APPS user in the test database to the DB_USR schema of the production database. Which option of IMPDP would you use to accomplish this task?

FULL=Y imports every object in the entire dump file without any schema filtering or renaming, which would not isolate or remap the APPS schema objects.

SCHEMAS specifies which schemas to include in the import operation but does not remap them to a different schema name in the target database.

TRANSFORM modifies the DDL generated during import (for example, removing storage attributes) and does not affect schema ownership or naming.

REMAP_SCHEMA=APPS:DB_USR tells Data Pump to take all objects owned by the APPS schema in the export dump file and create them under the DB_USR schema in the target database. This is the precise mechanism for cross-schema imports where the source and destination schema names differ across environments.

REMAP_TABLESPACE reassigns objects from one tablespace to another during import, not from one schema owner to another.