You Want to Change the Owner of a File Named

Multiple Choice

You want to change the owner of a file named /var/opt/confidential from alice (who is a member of the sales group) to john (who is a member of the engineers group) . You want to change both user and group owners. Which of the following commands should you use?

A) chown alice john /var/opt/confidential
B) chown -u "john" -g "engineers" /var/opt/confidential
C) chown john /var/opt/confidential
D) chown john.engineers /var/opt/confidential