The IBM System Storage TS7650 ProtecTIER Deduplication Appliance supports emulation of up to how many of the following?（）

• A、up to 18 virtual libraries, 64 virtual drives, and 55000 virtual cartridges
• B、up to 6 virtual libraries, 128 virtual drives, and 110000 virtual cartridges
• C、up to 12 virtual libraries, 256 virtual drives, and 128000 virtual cartridges
• D、up to 24 virtual libraries, 512 virtual drives, and 256000 virtual cartridges