单选题：How could you change the group membership of the file foobar to

How could you change the group membership of the file foobar to group foo? @[B](1)
A. chown foo foobar
B. chgrp foo foobar
C. chgroup foo foobar
D. chperm --group foo --file foobar




A.chown foo foobar
B.chgrp foo foobar
C.chgroup foo foobar
D.chperm --group foo --file foobar


答案：B