问题：

[单选] BlingbyAlex.com was known several years ago by the name AlexBling.com.At times， the sales staff still receives orders from clients at the AlexBling.com address.Both names are owned by the company.After you successfully deploy an Exchange 2010 server configuration， which includes two Hub Transport servers， the sales staff informs you that they are no longer able to receive mail at the AlexBling.com address.What should you do so that they can receive email from both domains？（）

A . On the Hub Transport server， use the New Accepted Domain Wizard to add AlexBling.com.
B . On the Mailbox server， use the New Accepted Domain Wizard to add AlexBling.com.
C . Use Active Directory to add an email alias to each user’s account for AlexBling.com.
D . On the Client Access server， use the New Accepted Domain Wizard to add AlexBling.com.