How would you check this?

You want to check that Avaya Aura® System Manager (SMGR) and Avaya Aura® Session Manager (SM) are communicating with each other, and ensure the database in SM is the same as in SMGR.

How would you check this?
A . PuTTY to Avaya Aura® Session Manager and execute st at usapp, and check that all processes are started.
B . Register an Avaya SIP Telephone(AST) and check to see its feature buttons.
C . Check in the Replica Group with a green "Synchronized"
D . Check in the Replica Group with a green "Session Manager OK".

Answer: D