In which two ways is P-CSCF discovered by the Voice over LTE IMS client? (Choose two.)
A. Retrieve the list of P-CSCF information that is stored locally on the IMS client.
B. Obtain P-CSCF information from other registered IMS clients.
C. Retrieve the list of P-CSCF information from the Mobility Management Entity.
D. Obtain P-CSCF information in the protocol configuration options during bearer context activation.
E. Obtain P-CSCF information from the Telephony Application Server during IMS registration.
