A technician has been unable to access a file and has issued the following commands to troubleshoot: Which of the following would allow the user to read the file without changing it?

Adding user 'root' to the 'readSome' group is irrelevant as 'root' already has full access to all files and would not grant access to 'readUser'.

Changing the file group to 'readFile' would alter file metadata and require 'readFile' to have appropriate permissions, which is less direct than leveraging existing group permissions.

Changing the file owner to 'readUser' would grant 'readUser' full control (read, write, execute) based on owner permissions, which violates the requirement to allow reading 'without changing it' if write access is also granted.

If the file's group is 'readSome' and that group has read permissions, adding the user 'readUser' to the 'readSome' group will grant 'readUser' the necessary read access. This approach leverages existing permissions without altering file ownership or group settings, which could have broader impacts.