Question: What is the PreferredVendorStatus for the company which has the rowguid of "684F328D-C185-43B9-AF9A-37ACC680D2AF"?
SQL: SELECT T1.PreferredVendorStatus FROM Vendor AS T1 INNER JOIN BusinessEntity AS T2 ON T1.BusinessEntityID = T2.BusinessEntityID WHERE T2.rowguid = '684F328D-C185-43B9-AF9A-37ACC680D2AF'