Which of the following commands makes /bin/foo executable by everyone but writable only by its owner?
A.
chmod o+rwx.a+rx/bin/foo
B.
chown 557 /bin/foo
C.
chmod 755/bin/foo
D.
chmod 557 /bin/foo
Explanation:
chmod 755 ecuals xxx x-x x-x meaning rwx, rx, rx.