Which is an example of a federal government suggestion that property managers can use to create drug$-$free climates in the properties they manage.

A HUD requirement that public housing occupants should be regularly tested for illegal drugs.

Rent collection in public housing should be flexible to accommodate low in$-$come people.

HUD may not require that public housing authorities enforce a drug$-$free workplace.

Implementation of new laws that have been written to allow police and housing inspectors to inspect certain units under certain conditions.