You need to allow the owner of each distribution group in your Exchange Server 2007 organization to modify membership for the group. You must not allow the owner to make any other changes.
What should you do?
A.
On the Managed By tab of each distribution group, add the owner, and select the Manager can update membership list check box.
B.
Modify each distribution group by assigning the Send As permission to the owners user account.
C.
Modify each distribution group by assigning the Write permission to the owners user account.
D.
Add the user accounts of the distribution group owners to the Exchange Recipient Administrator role.