YouhaveanExchangeServer2010organization.AllusersconnecttotheirmailboxesbyusingMicrosoftOfficeOutlook2007ServicePack2（SP2）andWindows7.YourcompanyssecurityadministratorsdeployOutlookProtectionRules.YouneedtorecommendaclientconnectionsolutionfortheorganizationtoensurethatOutlookProtectionRulescanbeused.Whatshouldyourecommend？（）
A.UpgradeallclientcomputerstoOutlook2010.
B.InstructalluserstoconnecttoOutlookWebApp（OWA）.
C.InstructalluserstoinstalltheRightsManagementService（RMS）client.
D.InstructalluserstoinstalltheSecure\/MultipurposeInternetMailExtensions（S\/MIME）control.
参考答案：A
