A.You should consider installing the server’s root certificate into the Trusted Root Certification Authorities store on the Client Access server.
B.You should consider accessing the Exchange Management Console (EMC) and assign an Outlook Web App mailbox policy to Mia Hamm.
C.You should consider installing the server’s root certificate into the Trusted Root Certification Authorities store on Mia Hamm’s client workstation.
D.You should consider accessing the Exchange Management Console (EMC) and set up the logon format to use the user principal name (UPN), in the owa (Default Web Site) Properties.