A pSeries technical specialist has been asked to provide a server consolidation solution to replace several AIX servers running typical commercial database workloads.  Benchmarks for SPECint， SPECfp， SPECjbb as well as estimates of ROLTP and rPerf are available for all the current systems. Which of the following could be used as a first approximation of total performance required for one large server？（）

• A、Sum of SPECfp values
• B、Sum of rPerf values only
• C、Sum of rPerf and ROLTP values
• D、Sum of SPECint and SPECjbb values