Which three statements are true regarding Avaya Aura® 7.x? (Choose three.)

Which three statements are true regarding Avaya Aura® 7.x? (Choose three.)
A . Avaya Aura® Communication Manager (CM) performs Collaboration Services.
B . The database in Avaya Aura® Media Server (AAMS) is periodically synchronized with System Manager (SMGR)
C . Avaya Aura® Session Manager (SM) performs SIP Session Management and Bandwidth Management.
D . System Manager (SMRG) frequently sends heartbeats to SIP Entities.
E . Presence Services in Avaya Aura® 7 is hosted as an Avaya Breeze® snap-in.

Answer: C,D,E