You have a Microsoft Teams Phone deployment that uses Direct Routing. The deployment has the following configurations:

• Direct Routing Session Border Controller (SBC) public IP subnet: 198.51.100.0/24
• Teams client external IP subnet: 203.0.113.0/24
• Teams client internal IP subnet: 192.168.0.0/24

You need to configure the network topology to support emergency call routing.

Which network range should you add to the trusted IP addresses?

A. 52.112.0.0/14

B. 198.51.100.0/24

C. 203.0.113.0/24

D. 192.168.0.0/24

Reference:
https://docs.microsoft.com/en-us/microsoftteams/manage-your-network-topology