A customer has the following equipment installed in their data center： （1）an IBM BladeCenter H chassis （2）two power supplies （3）six HS22V blades （4）three Nortel 1/10 GB ESMs The retail customer purchased a new HX5 with MAX5. Which of the following must be added to install the HX5 with MAX5？（）
- ATwo additional power supplies
- BFibre Channel （FC） switches and SAN storage
- CA Nortel 1/10 GB ESM
- DSSD for the HX5