Which statement about host and group variables are most correct?

Group of answer choices

The best way to define a host variable is directly in the inventory file: server$1.$example.com privilege$\_$user$=$remote$\_$user

To use a variable $,$ double curly braces should be used at all times $(\{\{\}\}).$

Play variables have the less precedence over host or group variables.

It is best to create host$\_$vars and group$\_$vars directories containing files defining host or group variables in the same directory as the inventory file or directory.

Best practice is to define host and group variables directly in the inventory file.