What cluster mode is represented in this case?

What cluster mode is represented in this case?
1 (local) 172.168.1.1 100% active
2 172.168.1.2 0% standby

A.
3rd party cluster

B.
Load Sharing (multicast mode)

C.
Load Sharing Unicast (Pivot) mode

D.
HA (New mode).

Explanation: