单选题：Which of the following scheduling is most flexible?

Which of the following scheduling is most flexible? @[B](1)
A. Multilevel scheduling
B. Multilevel feedback queue scheduling
C. First-come, first-served scheduling
D. Round-robin scheduling



A.Multilevel scheduling
B.Multilevel feedback queue scheduling
C.First-come, first-served scheduling
D.Round-robin scheduling


答案：B