A customer needs both a database and application server to communicate over a network.  The new systems will be connected to the same network as the current IBM equipment with known IBM serial numbers.  How could a pSeries technical specialist best determine which type of network card is appropriate， without making an additional call to the customer？（）

• A、Use an Inventory Services retrieval to show adapter features.
• B、Retrieve previous eConfig proposals to see what others had shown.
• C、Call the Account Executive to ask what the customer has used in the past.
• D、Query the Supportline problem record database for the customer and LAN keyword matches.