AnorganizationhasExchangeserver2010.NetworkcontainsinternalrootCertificationAuthorization（CA）.UsersonnetworkuseOutlookAnywhere.ACASserverusesawildcardcertificateissuedbyatrustedthirdpartyrootCA.Youneedtoensurethatuserscansendandreceiveencryptede-mailmessagesbyusingS\/MIME.Whatshouldyoudo？（）
A.Instructalluserstoimportthe3d-partyrootCAcertification
B.ConfigureCASservertouseacertificateissuedbyathird-partyCA
C.InstructalluserstoimportaninternalrootCAcertificate
D.DeployOutlookWebAccesswiththeS\/MIMEcontroltotheclientsystem
参考答案：A
