Question: What is the primary responsibility of the Unmanned Aerial System Traffic Management (UTM) entity in the context of UAS operation?
Option 1: To transport and add additional data to the request to operate from the UAS to the MNO.
Option 2: To perform initial mutual authentication between the UAS and the MNO.
Option 3: To authorize UAS to operate and check the credentials of the UAS and UAV operator.
Option 4: To store all data regarding the UAV, UAV controller, and their live location for air traffic control agencies.
Explanation: The Unmanned Aerial System Traffic Management (UTM) entity is responsible for authorizing UAS to operate and checking the credentials of the UAS and UAV operator. This is a critical function in ensuring safe and secure operation of unmanned aerial systems.