Which of the following statements regarding a tracking area list (TA list) is TRUE?
A . The location of an idle UE is known by the network at an eNodeB granularity.
B . The location of an active UE is known by the network at a TA list granularity.
C . All the tracking areas in a TA list are served by the same MM
E . A tracking area list is a logical set of MMEs.
Answer: B