A customer has a p650 with a write-intensive database application.  Recently the order entry team has complained about unusually slow response times. There have been no complaints from any other departments.  Which of the following actions would most likely address the problem？（）

• A、Double the number of processors.
• B、Double the number of memory DIMMs.
• C、Double the number of network adapters.
• D、Double the number of SCSI buses and disks.