问题：

[多选] You need to design a migration path for migrating user accounts and mailboxes to the new environment. Which two actions should you perform？（）

A . Use the Migration Wizard to create and migrate mailboxes to Exchange Server 2003
B . Use Active Directory Users and Computers to move user accounts and mailboxes to the new environment
C . Use Microsoft Identity Integration Server （MIIS） to synchronize user accounts with the new environment
D . Use the Active Directory Migration Tool （ADMT） to clone user accounts in Active Directory
E . Use ClonePrincipal to migrate user accounts to the new environment