A customer needs three 2-way application servers and is evaluating the purchase of three p5-520s versus one partitioned 6-way p5-570.  They like the benefits provided with dynamic processor sparing.  What information should the pSeries technical specialist emphasize to the customer？（）

• A、The p5-570 offers CoD processors.
• B、The p5-570 requires more rack space than the three p5-520s.
• C、Redundant power is standard on the p5-570 and is optional on the p5-520.
• D、Operating system charges will be less expensive with the p5-520 solution.