In which way does SyncE propagate the clocking information in synchronous mode over an Ethernet link?
A . It encodes the clock information into IEEE 1588v2 packets
B . It uses the communication channel conveying the clock information that is called SSM
C . It uses dedicated ESMC frames that are sent at regular intervals
D . It uses Layer 2 multicast frames that are sent to 01:00:5E:00:01:01
Answer: B