Explanation:
To export all objects for a particular user to another database you need to use USER export mode.
Incorrect Answers:
2: With TABLE mode you can only export some tables, not all objects of a particular user.
3: COMPLETE mode used to create base level backup with Export utility. A complete export produces a dum file containing all objects in the database.
4: An INCREMENTAL export consists of all database objects that have changes since the last cumulative, complete, or incremental export was run on the database.
Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 722-728
Chapter 15: Advanced Topics in Data Recovery

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