What is a design consideration when using existing PCIe I/O drawers in a maximum bandwidth/throughput configuration on a new Power 750 system?（）

• A、The new system requires 1 installed processor card for the GX++ bus adapter
• B、The new system requires a minimum of 2 installed processor cards for the GX++ bus adapter
• C、The new system requires a minimum of 3 installed processor cards and the HPC InfiniBand cluster adapter
• D、The new system requires 1 installed processor card for the GX++ bus adapter and the HPC InfiniBand  cluster adapter