Which of the following commands will accomplish this?

A superuser wants to transform the following permission set from -rw-r–r– 1 root root 4096 Apr 20 17:40 filename
to
-rwx-w—- 1 root root 4096 Apr 20 17:40 filename

Which of the following commands will accomplish this?

A.
chown 720 filename

B.
chmod u+x,g-w-r,o-r filename

C.
chmod u+x,g+w-r,o-r filename

D.
chmod 710 filename