Northern Trail Outfitters has created child business units (BU) for their different regional offices. They want to limit subscriber records by BU, so users who are assigned to a BU can only view and send to Subscriber records in their region. A Profile Attribute named `Region' associates a subscriber to a geographical region.How could they ensure subscribers with a matching `Region' Profile Attribute value are available in each BU?
A. Create a list in each BU and add subscribers with a matching Region to the list
B. Open the Profile Attribute Properties for the `Region' Profile Attribute and select the `Filter Subscribers by Attribute' option
C. Create a measure for each corresponding `Region' Profile Attribute and include the measure in a Filtered Data Extension for each BU
D. Select `Define Subscriber Filter' for each BU on the BU Setup page and configure a condition to match the corresponding Profile Attribute