Explanation:
The ENABLEVERSIONING procedure of the DBMS_WM package will version enable the MORTGAGE table.
Incorrect Answers:
1: This syntax is incorrect to version enable the MORTGAGE table. There is no DBMS_LT package in Oracle.
2: This syntax is incorrect to version enable the MORTGAGE table.
3: This syntax is incorrect to version enable the MORTGAGE table. There is no DBMS_LT package in Oracle.
Reference:
OCP Oracle9i Database: New Features for Administrators, Daniel Benjamin, p. 166-176
Chapter 3: Manageability Enhancements

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