A.Createasinglestoragegroup.Createonedatabaseforallusers
B.Createtwostoragegroups.Ineachstoragegroup，createonedatabase.Placemailboxesforremoteusersinonestoragegroupdatabase，andplaceallothermailboxesintheotherstoragegroupdatabase
C.Createtwostoragegroups.Ineachstoragegroup，createonedatabase.Placeexecutivemailboxesinonestoragegroupdatabase，andplaceallothermailboxesintheotherstoragegroupdatabase
D.Createtwostoragegroups.Inonestoragegroup，createadatabase，andplaceallmailboxesforremoteusersandexecutivesinthedatabase.Intheotherstoragegroup，createadatabaseforallothermailboxes
参考答案：C
