A customer has a POWER6 520 system with 6 partitions. They plan to upgrade their system and need to determine the current hardware configuration of the partitions before making any upgrade decisions. What is needed to read the exported system plan and design the new system?（）

• A、e-Config
• B、System Planning Tool (SPT)
• C、IBM Workload Estimator (WLE)
• D、IBM Performance Monitor (PM)