How can you prevent delay-sensitive applications, such as video and voice traffic, from being dropped due to long queues when using a Check Point QoS solution?

How can you prevent delay-sensitive applications, such as video and voice traffic, from being
dropped due to long queues when using a Check Point QoS solution?

A.
Low latency class

B.
DiffServrule

C.
guaranteed per connection

D.
Weighted Fair Queuing

E.
guaranteed per VoIP rule