A file named linuxexercises.odt has a mode of rw-r- -r- -. If linuxuser is the file's owner, what can he do with it?
A. He can open the file and view its contents, but he can't save any changes.
B. He can open the file, make changes, and save the file.
C. He can change ownership of the file.
D. He can run the file if it's an executable.