For which purpose will an officer most likely broadcast a flash description?

For which purpose will an officer most likely broadcast a flash description?
 
  A) To enable other officers to quickly apprehend a suspect still in the vicinity
  B) To alert medical emergency personnel of an injured person
  C) To warn passersby to avoid a recent crime scene
  D) To record the names and addresses of potential witnesses to a crime

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(Question #2) In general, officers are permitted to conduct a protective search or sweep of the premises when they have reasonable grounds to believe that a person within the premises is in immediate need of assistance or ________.
 
  A) An unusual odor surrounding the crime scene is present
  B) A perpetrator is present
  C) The premises is privately owned
  D) A search of the premises may result in a felony arrest