Hajar is a security professional for a government contractor. She is reviewing and updating her company's policies and procedures guide. She determines the information for passwords is outdated. She reviews the National Institute of Standards and Technology $($NIST$)$ website, and Special Publication $($SP$)800-53$ in particular, and wants to implement its recommendations, so she begins modifying a portion of the guide. Which part of the password information is she most likely working on at the moment?

A$.$ Guideline

B$.$ Procedure

C$.$ Standard

D$.$ Policy