SDM creates a low latency queuing （LLO） service policy with its associated classes. What are the two types of low latency queuing available using the SDM OoS wizard？（）

A.FIFO queuing， which provides a means to hold packets while they are waiting to exit an interface

B.Priority queuing， which ensures a fixed amount of bandwidth

C.Custom queuing （CO）， which provides a queuing tool that services all queues， even during times of congestion

D.Bandwidth queuing， which ensures a minimum amount of bandwidth

E.Weighted fair queuing （WFO）， which classifies packets based on flows