What needs to be changed in SBCE to make this happen?

Incoming SIP Trunking calls from Service Provider to Session Manager are failing because Avaya Session Border Controller for Enterprise (SBCE) is not sending a domain name in the TO, FROM and REQUEST headers.

What needs to be changed in SBCE to make this happen?
A . In SBCE GUI, navigate to Global Profiles > Routing. Edit the Session Manager Routing Profile to link to a URI Group, which has the To, From and Request Headers and Replace Action set to Overwrite with domain name.
B. In Avaya Session Border Controller for Enterprise (SBCE) GUI, navigate to Global Profiles > Server Configuration > Edit the Session Manager server entry to set “Overwrite Domain Name.”
C. In SBCE GUI, navigate to Global Profiles > Topology Hiding. Edit the SessionManager_TH to change the To, From and Request Headers Replace Action, to Overwrite with domain name.
D. In SBCE GUI, navigate to Device Specific Settings > Endpoint Flows > Server Flows. Edit the Session Manager flow to change the End Point Policy Group to default-low.

Answer: D