A startup company recently lost their critical database due to hardware failure on a Windows 2003 4-way processor server running 32-bit applications and an out-dated backup due to a narrow backup window.  To prevent this situation from happening again， the solution proposed must be cost effective， scale to 16-way and allow for future storage expansion.  Which TWO of the following options should the consultant recommend？（）

• A、Implement Snapshot feature of Storage Manager.
• B、Implement Flashcopy feature of Storage Manager.
• C、Provide remote volume mirroring （RVM） feature of Storage Manager.
• D、Implement MSCS clustering on an x455 attached to a shared Fibre DS4000 SAN fabric.
• E、Implement MSCS clustering on an x445 attached to a shared Fibre DS4000 SAN fabric.