Which TWO commands can be used to make the file /tmp/foo.txt readable for all users?

Which TWO commands can be used to make the file /tmp/foo.txt readable for all users?

A.
chmod 111 /tmp/foo.txt

B.
chmod 444 /tmp/foo.txt

C.
chmod 770 /tmp/foo.txt

D.
chmod 644 /tmp/foo.txt

E.
chmod 640 /tmp/foo.txt