Which of the Following Statements About Roles Is Incorrect?​

Which of the following statements about roles is incorrect?​

A) ​A role is a group,or collection,of privileged passwords and user names.
B) ​A role is a group,or collection,of privileges.
C) ​Rather than assign the same privileges again and again to different users,a simpler approach is to assign the privileges to a role,and then assign the role to the users.
D) ​Users can be assigned several different roles,based on the tasks they perform.