Which command do you use to configure that the new public folders are created only on server4?

You have Exchange 2010 SP1 and outlook clients in configuration:

Server1 holds public folder database.
You deploy server4 and outlook2010 clients.
Which command do you use to configure that the new public folders are created only on
server4?

A.
Set-MailboxDatabase

B.
Remove-StoreMailbox

C.
Get-MailboxDatabase

D.
New-MailboxDatabase

Explanation:
http://technet.microsoft.com/en-us/library/bb629522.aspx
Set-MailboxDatabase -Identity “Mailbox Database” -PublicFolderDatabase
“PublicFolderDB1”