The Optim Directory is built as part of the installation on the first workstation. Which two statements are correct about the Optim Directory? (Choose two.)

A.
The Optim Directory can reside on DB2 LUW, Oracle or Microsoft Access.

B.
There may be more than one Optim Directory and they may reside on both Windows and UNIX.

C.
The Optim Directory can reside on DB2 z/OS, Teradata or Microsoft SQL Server.

D.
The definitions can be migrated from one Optim Directory to another with an Export and Import process.

E.
The Optim Directory is always stored on a Windows workstation.