单选题：What does the "sticky bit" do?
What does the "sticky bit" do? @[C](1)
A. It prevents files from being deleted by anyone.
B. It marks files for deletion.
C. It prevents files from being deleted by nonowners except root.
D. It prevents files from being deleted by nonowners including root.
A.It prevents files from being deleted by anyone.
B.It marks files for deletion.
C.It prevents files from being deleted by nonowners except root.
D.It prevents files from being deleted by nonowners including root.
答案：C
A. It prevents files from being deleted by anyone.
B. It marks files for deletion.
C. It prevents files from being deleted by nonowners except root.
D. It prevents files from being deleted by nonowners including root.
A.It prevents files from being deleted by anyone.
B.It marks files for deletion.
C.It prevents files from being deleted by nonowners except root.
D.It prevents files from being deleted by nonowners including root.
答案：C