单选题：The following activities are what an operating system concerns e

The following activities are what an operating system concerns except for ? @[D](1)
A. managing memory
B. providing an interface between the user and the system
C. managing files in a disk
D. providing users for application software




A.managing memory
B.providing an interface between the user and the system
C.managing files in a disk
D.providing users for application software


答案：D