Which of the following statements most accurately describes the MME?

[answerhappygod]

Which of the following statements most accurately describes the MME?

A. The MME selects the SGW and the PGW for a given UE.
B. The MME is responsible for the bearer management.
C. The MME communicates with both the E-UTRAN and the EPC via GTP-C tunnels.
D. The MME performs the user authentication and authorization using the information provided by the HSS
E. All of the above answers are correct.
F. Only answers A, B and D are correct.