A Systems Administrator Is Tasked to Add an Existing User

Multiple Choice

A systems administrator is tasked to add an existing user to an existing group on a local Linux system. Which of the following files should be edited to accomplish this task?

A) /etc/group file /etc/group file
B) /etc/passwd file /etc/passwd
C) /etc/hosts file /etc/hosts
D) /etc/group_membership file /etc/group_membership