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