Which statement about SGSN when it is serving a 2G network is true?
A. In the 2G environment, the SGSN must connect to the BSS via a “physical” circuit.
B. Less is required of the SGSN when it is serving a 2G network.
C. The SGSN communicates with RNC when serving a 2G network.
D. None of the management tasks that are handled in the 3G environment by the RNC are tasked to the SGSN in the 2G environment.
