Select all of the answers that are true:

A SAS program file can be saved and reused

A raw data file contains variables and observations

A SAS data set contains variables and observations

A SAS dataset name can be up to $32$ characters in length

A SAS data set can contain a dollar sign $($$$)$

The prefix temp can be added to the beginning of a temporary SAS data set name.

The naming convention for a SAS program file is the same regardless of the operating environment.