What does the Character Set Scanner command line utility do?

What does the Character Set Scanner command line utility do?

A.
reports only on any Unicode character conversions required

B.
performs character set conversions to the new specified characterset

C.
scans on any character set conversion required, then converts the data

D.
checks for any character definitions that will fail conversion to the new characterset

Explanation:
The character set scanner (csscan) allows the users to evaluate the impact of migrating an existing database to a new character set or to check if a database contains codepoints outside the current character set (from V1.1 onwards). The tool scans the data in the database including the data dictionary and provides an analysis of the current data, highlighting data which will be converted when migrated to the new database character set or what data is incorrectly stored in the database.These findings are summarized in the database scan summary report and individual exception report.

REF: Metalink Note:179843.1Availability & versioning of the Character Set Scanner