单选题：If you want to turn off default permissions on new files that yo

If you want to turn off default permissions on new files that you are about to create, for everyone except yourself, what command would you use? @[A](1)
A. umask 077
B. umask 700
C. umask 007
D. umask 666




A.umask 077
B.umask 700
C.umask 007
D.umask 666


答案：A