You work as a Systems Administrator for your company. The company has a main office in New York and 20 branch offices in North America. Some of the branch offices are in locations with low bandwidth Internet connectivity. The company has a Microsoft 365 subscription. All users in the company have a Microsoft 365 E3 license. All users use Microsoft Teams for collaboration. You deploy Quality of Service (QoS) due to branch office users reporting occasional poor call quality when using Microsoft Teams. You need to confirm that QoS is being applied at the branch offices. Which of the following should you use? 

Answer options:

A. Microsoft Network Monitor
B. Microsoft Network Testing Companion
C. Microsoft Teams Device Usage Report
D. Microsoft Teams Call Quality Dashboard

A