Exam XK0-004 topic 1 question 134 discussion

Joe, a member of the accounting group on a Linux system, is unable to write a file called `taxes` in the accounting shared directory. The ownership and permissions on the directory and file are as follows: accounting drwxrw-r-- user = ann, group = accounting taxes -rw-r--r-- , user = ann, group = accounting
Which of the following commands would allow Joe to write to the file? (Choose two.)