What do the abbreviations BOLO and ATL refer to in terms of radio broadcasts?

The correct choice refers to "Be on the Look Out" and "Attempt to Locate," which are critical terms used in law enforcement and communication among emergency services. When a situation arises, such as the disappearance of an individual or the sighting of a suspect, a BOLO is issued to alert all relevant personnel. This ensures that law enforcement officers across various jurisdictions are on high alert and actively searching for the specified person or vehicle.

The term "Attempt to Locate" complements the BOLO by indicating that efforts to find an individual or object are ongoing or necessary. The use of these terms enables quick communication and a coordinated response among different agencies, increasing the likelihood of successfully locating the person or item in question.

Other options, such as emergency weather alerts, police unit tracking, and fire hazard warnings, do not convey the specific context of alerting officers to look out for a person or item, making them less relevant in the context of BOLO and ATL.