If traffic requires preferential treatment by other routers on the network, in addition to the QoS module, which Check Point QoS feature should be used?

If traffic requires preferential treatment by other routers on the network, in addition to the QoS module, which Check Point QoS feature should be used?

A.
Guarantees

B.
Differentiated Services

C.
Weighted Fair Queuing

D.
Low Latency Queuing